Remove unused variables/functions and fix misc warnings

--- pxlinux/jitterbeta.cpp
+++ pxlinux/jitterbeta.cpp
@@ -364,15 +364,13 @@
 
         Scsi_Command  cmd;
 
-	int err;
-
 	if (!cmd.associate(drive))
 	  fprintf (stderr,"%s: unable to open: ",drive),
 	    perror (NULL),
 	    exit (1);
 
 	for (int i=0;i<16;i++) {
-		int j = read_one_ecc_block(drive, pBuffer, lba);
+		read_one_ecc_block(drive, pBuffer, lba);
 		//if (j == COMMAND_FAILED) i=16;
 		lba += 16;
 	}
@@ -394,7 +394,7 @@
 {
     int capacity;
     char *drive; 
-    int** result_map;
+    int* result_map;
     int *speed;
     int interval;
   
@@ -427,7 +426,7 @@
 	int			 jitter, k;
 	unsigned int value;
 	int			 produce_map = 0;
-	void*		 pBuffer  = malloc(32768);
+	char*		 pBuffer[32768];
 
 
 	if (!capacity) read_capacity(drive, &capacity);
@@ -445,17 +445,15 @@
 	//	ReleaseSemaphore(hSemaphore, 1, NULL);
 	//}
 
-	if (result_map) {
-		*result_map = (int*)calloc(sizeof(int), capacity+1);
-		(*result_map)[0] = capacity;
+		result_map = (int*)calloc(sizeof(int), capacity+1);
+		result_map[0] = capacity;
 		produce_map = 1;
-	}
 
 	for (k = 0;k<capacity;k=k+interval) {
 		plextor_jitterbeta_do_16_ecc_blocks(drive, pBuffer, k*16*16, &jitter, &beta);
 
 		value = (beta) << 16 | (jitter & 0xFFFF);
-		if (produce_map) (*result_map)[k+1] = value;
+		if (produce_map) result_map[k+1] = value;
 
 		//printf("\r(%5.1f%%) LBA: %06X  jitter: %4d,  beta: %4d", (float)k*100/capacity,
 		//	k*16*16, jitter, (int)beta);
@@ -476,7 +475,6 @@
 
 
 	plextor_end_pi(drive);
-	delete pBuffer;
 	return 1;
 
 }
--- pxlinux/pif.cpp
+++ pxlinux/pif.cpp
@@ -346,7 +346,7 @@
 	//memset( &srbExec, 0, sizeof(SRB_ExecSCSICmd) );
 
 	for (int i=0;i<8;i++) {
-		int j = read_one_ecc_block(drive, pBuffer, lba);
+		read_one_ecc_block(drive, pBuffer, lba);
 		//if (j == COMMAND_FAILED) i = 8;
 		lba += 16;
 	}
@@ -366,7 +366,7 @@
 {
     int capacity;
     char *drive; 
-    int** result_map;
+    int* result_map;
     int *speed;
     int interval;
   
@@ -391,11 +392,10 @@
     //printf("%d",speed);
 
 
-	void*	pBuffer  = malloc(32768);
+	char*	pBuffer[32768];
 	long    capacity_in_bytes;
 
 	int		scan_start_time;
-	int		scan_end_time;
 	int		last_update;
 	int		produce_map = 0;
 
@@ -414,11 +414,9 @@
 	printf("#disc capacity: %d sectors = %d ECC blocks\n\n", capacity, capacity >> 4);
 	capacity >>= 7;
 
-	if (result_map) {
-		*result_map = (int*)calloc(sizeof(int), capacity+1);
-		(*result_map)[0] = capacity;
+		result_map = (int*)calloc(sizeof(int), capacity+1);
+		result_map[0] = capacity;
 		produce_map = 1;
-	}
 
 	//if (virtual_file) {
 	//	*virtual_file++ = capacity;
@@ -442,7 +440,7 @@
 	for (k = 0;k<capacity;k=k+interval) {
 		plextor_pif_do_one_ecc_block(drive, pBuffer, k*16*8, &current_error_count);
 		total_error_count += current_error_count;
-		if (produce_map) (*result_map)[k+1] = current_error_count;
+		if (produce_map) result_map[k+1] = current_error_count;
 		if (max_error_count < current_error_count) max_error_count = current_error_count;
 		if (current_error_count > 4) broken_count++;
 
@@ -472,7 +470,7 @@
 			//}
 
 	total_error_count = 0;
-	for (k=0;k<capacity;total_error_count+=(*result_map)[k+++1]);
+	for (k=0;k<capacity;total_error_count+=result_map[k+++1]);
 
 	//if (!silent) {
 		printf("#\r#total error count                                   : %8d         \n", total_error_count);
@@ -486,7 +487,5 @@
 
 	//if (!silent) printf("duration                                            : %d seconds\n", (scan_end_time - scan_start_time) / 1000);
 
-	delete pBuffer;
-
 	return 1;
 }
--- pxlinux/pisum8.cpp
+++ pxlinux/pisum8.cpp
@@ -347,7 +347,7 @@
 	//memset( &srbExec, 0, sizeof(SRB_ExecSCSICmd) );
 
 	for (int i=0;i<8;i++) {
-		int j = read_one_ecc_block(drive, pBuffer, lba);
+		read_one_ecc_block(drive, pBuffer, lba);
 		//if (j == COMMAND_FAILED) i = 8;
 		lba += 16;
 	}
@@ -367,7 +367,7 @@
 {
     int capacity;
     char *drive; 
-    int** result_map;
+    int* result_map;
     int *speed;
     int interval;
   
@@ -393,11 +394,10 @@
     //printf("%d",speed);
 
 
-	void*	pBuffer  = malloc(32768);
+	char*	pBuffer[32768];
 	long    capacity_in_bytes;
 
 	int		scan_start_time;
-	int		scan_end_time;
 	int		last_update;
 	int		produce_map = 0;
 //	int     m;
@@ -417,11 +417,9 @@
 	printf("#disc capacity: %d sectors = %d ECC blocks\n\n", capacity, capacity >> 4);
 	capacity >>= 7;
 
-	if (result_map) {
-		*result_map = (int*)calloc(sizeof(int), capacity+1);
-		(*result_map)[0] = capacity;
+		result_map = (int*)calloc(sizeof(int), capacity+1);
+		result_map[0] = capacity;
 		produce_map = 1;
-	}
 
 	//if (virtual_file) {
 	//	*virtual_file++ = capacity;
@@ -444,7 +442,7 @@
 	for (k = 0;k<capacity;k=k+interval) {
 		plextor_pisum8_do_eight_ecc_blocks(drive, pBuffer, k*16*8, &current_error_count);
 		total_error_count += current_error_count;
-		if (produce_map) (*result_map)[k+1] = current_error_count;
+		if (produce_map) result_map[k+1] = current_error_count;
 		if (max_error_count < current_error_count) max_error_count = current_error_count;
 		if (current_error_count > 280) broken_count++;
 
@@ -474,7 +472,7 @@
 			//}
 
 	total_error_count = 0;
-	for (k=0;k<capacity;total_error_count+=(*result_map)[k+++1]);
+	for (k=0;k<capacity;total_error_count+=result_map[k+++1]);
 
 	//if (!silent) {
 		printf("#\r#total error count                                   : %8d         \n", total_error_count);
@@ -488,7 +489,5 @@
 
 	//if (!silent) printf("duration                                            : %d seconds\n", (scan_end_time - scan_start_time) / 1000);
 
-	delete pBuffer;
-
 	return 1;
 }
--- pxlinux/ta.cpp
+++ pxlinux/ta.cpp
@@ -68,7 +68,6 @@
 {
 	int* dest[] = { dest_land, dest_pit };
 
-	int size = swap2(response_data);
 	int count = swap2(response_data+2);
 	response_data+=28;
 
@@ -94,7 +93,7 @@
 
 	for (int k=0;k<2;k++) {
 		j1=0; j2=0; local_max = 0;
-		for (int i=40;i<330;i++) {
+		for (i=40;i<330;i++) {
 			if (src[k][i-1] <= src[k][i] && src[k][i+1] <= src[k][i] && src[k][i] > 20 && src[k][i] > local_max) {
 				peaks[k][j1] = i;
 				local_max = src[k][i];
@@ -144,13 +143,9 @@
 {
 
 Scsi_Command	cmd;
-  unsigned char	header[40],inq[128],*page2A=NULL;
-  char		cmdname[64];
   //  int		i,j,ntracks,err,dvd_dash=0,dvd_plus=0,
   //	plus_mediaid_printed=0,page2A_printed=0,dvd_ram_spare=0;
-  unsigned short profile,dvd_0E=0,dvd_10=0,dvd_11=0,dvd_0A=0,dvd_C0=0;
   //char data [65536]; //= {0x00,0x00,0,0,0,0,0,0};
-  char *pDest;
   int layers;
 
 
--- pxlinux/transport.hxx
+++ pxlinux/transport.hxx
@@ -1271,6 +1271,8 @@
 #error "Unsupported OS"
 #endif
 
+#if 0
+
 #define DUMP_EVENTS 0
 static int handle_events (Scsi_Command &cmd)
 { unsigned char  event[8];
@@ -1599,6 +1601,8 @@
 }
 #undef FEATURE21_BROKEN
 
+#endif
+
 #undef ERRCODE
 #undef CREAM_ON_ERRNO
 #undef CREAM_ON_ERRNO_NAKED