300947 Use ld -dead_strip (DEAD_CODE_STRIPPING) for Camino. Camino-only-npotdb. r=smfr sr=pink

camino/Camino.xcode/project.pbxproj

@@ -12410,6 +12410,7 @@
 		4A9504CDFFE6A4B311CA0CBA = {
 			buildSettings = {
 				COPY_PHASE_STRIP = YES;
+				DEAD_CODE_STRIPPING = YES;
 				GCC_ENABLE_FIX_AND_CONTINUE = NO;
 				GCC_GENERATE_DEBUGGING_SYMBOLS = NO;
 				GCC_WARN_NON_VIRTUAL_DESTRUCTOR = YES;
@@ -16359,6 +16360,7 @@
 		F593CA5E034EB88E01A967F3 = {
 			buildSettings = {
 				COPY_PHASE_STRIP = NO;
+				DEAD_CODE_STRIPPING = YES;
 				DEBUGGING_SYMBOLS = YES;
 				GCC_WARN_UNINITIALIZED_AUTOS = YES;
 				WARNING_CFLAGS = "-Wno-non-virtual-dtor";