Re-enable LTO for libdl_android

The build breakage is now fixed by the current stable Clang, workaround
is no longer needed.

Test: presubmit
Bug: 169004486
Change-Id: Ieb1e35b0dbafe0fbe47c23ff310c803bf697a664
diff --git a/libdl/Android.bp b/libdl/Android.bp
index 762aeef..3bda856 100644
--- a/libdl/Android.bp
+++ b/libdl/Android.bp
@@ -226,10 +226,6 @@
         "//apex_available:platform",
         "com.android.runtime",
     ],
-
-    lto: {
-        never: true,
-    },
 }
 
 ndk_library {