Remove deny_warnings

Test: Build
Change-Id: I059a0045da3f139c27834253a995c80104ba67e1
diff --git a/Android.bp b/Android.bp
index 1924ac0..02b1a7b 100644
--- a/Android.bp
+++ b/Android.bp
@@ -2,7 +2,6 @@
 
 rust_library_rlib {
     name: "libandroid_logger",
-    deny_warnings: false,
     crate_name: "android_logger",
     srcs: ["src/lib.rs"],
     edition: "2015",