mjit_worker.c: try passing -nostdlib to AIX

r66812 might have allowed this. Testing.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66816 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

mjit_worker.c

@@ -260,7 +260,7 @@ static const char *const CC_DLDFLAGS_ARGS[] = {
     MJIT_DLDFLAGS
 #if defined __GNUC__ && !defined __clang__
     "-nostartfiles",
-# if !defined(_WIN32) && !defined(__CYGWIN__) && !defined(_AIX)
+# if !defined(_WIN32) && !defined(__CYGWIN__)
     "-nodefaultlibs", "-nostdlib",
 # endif
 #endif