Remove reference to libogg

libogg is not needed to build libopus, remove it.

Test: builds
Change-Id: I0ebb83977db5c20fd93b676633fc4ddb88a09b46
diff --git a/Android.bp b/Android.bp
index e3c8b8e..b4a8922 100644
--- a/Android.bp
+++ b/Android.bp
@@ -315,6 +315,4 @@
             },
         },
     },
-
-    static_libs: ["libogg"],
 }