Stop dereferencing _end in crt1.c. This was only needed for brk/sbrk so is

no longer needed.

Sponsored by:	ABT Systems Ltd

lib/csu/aarch64/crt1.c

@@ -71,17 +71,8 @@ __start(int argc, char *argv[], char *env[], void (*cleanup)(void))
 
 	if (&_DYNAMIC != NULL)
 		atexit(cleanup);
-	else {
-		/*
-		 * Hack to resolve _end so we read the correct symbol.
-		 * Without this it will resolve to the copy in the library
-		 * that firsts requests it. We should fix the toolchain,
-		 * however this is is needed until this can take place.
-		 */
-		*(volatile long *)&_end;
-
+	else
 		_init_tls();
-	}
 
 #ifdef GCRT
 	atexit(_mcleanup);