Revert "libbinder: export fewer symbols for bionic builds"

This reverts commit 6781d33a5f1f65031907dba71cbaf404a18459df.

Reason for revert: Causes b/349657329

Change-Id: Id87786ad46b1b48b0040b75edc4ec64f2d382e73
Test: Local build of device with this reverted no longer has b/349657329
diff --git a/libs/binder/Android.bp b/libs/binder/Android.bp
index bd6a08e..f31f8d3 100644
--- a/libs/binder/Android.bp
+++ b/libs/binder/Android.bp
@@ -268,21 +268,6 @@
         "-DANDROID_BASE_UNIQUE_FD_DISABLE_IMPLICIT_CONVERSION",
         "-DANDROID_UTILS_REF_BASE_DISABLE_IMPLICIT_CONSTRUCTION",
     ],
-
-    target: {
-        bionic: {
-            // Hide symbols by default and set the BUILDING_LIBBINDER macro so that
-            // the code knows to export them.
-            //
-            // Only enabled on bionic builds, where RTTI is disabled, because
-            // it is failing to export required typeinfo symbols.
-            // TODO: b/341341056 - Find a solution for non-bionic builds.
-            cflags: [
-                "-fvisibility=hidden",
-                "-DBUILDING_LIBBINDER",
-            ],
-        },
-    },
 }
 
 cc_defaults {