Remove libmediadrm symlinks

Test: build
Change-Id: I53d703b6d34226926437b0207a2b3d51dff6881a
diff --git a/media/codec2/sfplugin/tests/Android.bp b/media/codec2/sfplugin/tests/Android.bp
index be7f55c..b6eb2b4 100644
--- a/media/codec2/sfplugin/tests/Android.bp
+++ b/media/codec2/sfplugin/tests/Android.bp
@@ -33,6 +33,10 @@
         "frameworks/av/media/codec2/sfplugin",
     ],
 
+    header_libs: [
+        "libmediadrm_headers",
+    ],
+
     shared_libs: [
         "libbinder",
         "libcodec2",