Re-enable LTO for linker

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

Test: presubmit
Change-Id: Ice2863844ff886f503d50fa7a006cde78d16492d
diff --git a/linker/Android.bp b/linker/Android.bp
index 4e158e4..2875263 100644
--- a/linker/Android.bp
+++ b/linker/Android.bp
@@ -502,10 +502,6 @@
         "//apex_available:platform",
         "com.android.runtime",
     ],
-
-    lto: {
-        never: true,
-    },
 }
 
 cc_test {