Bug 708567 - Remove jemalloc-standalone-linkage-version-script, as it's not used anymore. r=khuey

build/unix/gnu-ld-scripts/jemalloc-standalone-linkage-version-script

@@ -1,21 +0,0 @@
-{
-   global:
-		_malloc_postfork;
-		_malloc_prefork;
-		jemalloc_stats;
-		malloc_usable_size;
-		je_malloc_usable_size_in_advance;
-		posix_memalign;
-		free;
-		realloc;
-		calloc;
-		malloc;
-		memalign;
-		valloc;
-		__free_hook;
-		__malloc_hook;
-		__realloc_hook;
-		__memalign_hook;
-		_IO_stdin_used;
-   local: *;
-};