Revert workaround of gcc-4.6.3-14+rpi1 ARM bug

The correct fix is to use gcc-4.7 or newer.  If the compiler borked
this, one should trust nothing else it produces.

Revert "FS-6524,FS-6494: the compiler for rpi seems to be strangely
mis-optimizing this if/else block. Yes, its already set to this value,
but without the else block, it 'magically' hits the if blocks above,
unless you sleep, print a log, or add the else"

This reverts commit 1ca1d637.

src/switch_core_media.c

@@ -3350,14 +3350,12 @@ SWITCH_DECLARE(uint8_t) switch_core_media_negotiate_sdp(switch_core_session_t *s
 				memset(&codec_fmtp, 0, sizeof(codec_fmtp));
 
 				if (zstr(map->rm_fmtp)) {
-					if (!strcasecmp(rm_encoding, "ilbc")) {
+					if (!strcasecmp(map->rm_encoding, "ilbc")) {
 						codec_ms = 30;
 						map_bit_rate = 13330;
-					} else if (!strcasecmp(rm_encoding, "isac")) {
+					} else if (!strcasecmp(map->rm_encoding, "isac")) {
 						codec_ms = 30;
 						map_bit_rate = 32000;
-					} else {
-						map_bit_rate = switch_known_bitrate((switch_payload_t)map->rm_pt);
 					}
 				} else {
 					if ((switch_core_codec_parse_fmtp(map->rm_encoding, map->rm_fmtp, map->rm_rate, &codec_fmtp)) == SWITCH_STATUS_SUCCESS) {