Revert "Use -Werror in frameworks/native/libs/vr"

This reverts commit 38a11928990e62b263abe2dada0ff1f43d878e7c.

Change-Id: I2315300d0c8d52e224907a4f8edcf0d53658a742
diff --git a/services/vr/virtual_touchpad/Android.bp b/services/vr/virtual_touchpad/Android.bp
index 919d124..3d5dfb2 100644
--- a/services/vr/virtual_touchpad/Android.bp
+++ b/services/vr/virtual_touchpad/Android.bp
@@ -18,11 +18,7 @@
     export_include_dirs: ["include"],
     shared_libs: shared_libs,
     cppflags: ["-std=c++11"],
-    cflags: [
-        "-DLOG_TAG=\"VrVirtualTouchpad\"",
-        "-Wall",
-        "-Werror",
-    ],
+    cflags: ["-DLOG_TAG=\"VrVirtualTouchpad\""],
     name: "libvirtualtouchpad",
     tags: ["optional"],
 }
@@ -55,12 +51,6 @@
     name: "VirtualTouchpad_test",
     stl: "libc++_static",
     tags: [ "optional" ],
-    cflags: [
-        "-Wall",
-        "-Werror",
-        "-Wno-unused-function",
-        "-Wno-unused-variable",
-    ],
 }
 
 // Service.
@@ -90,8 +80,6 @@
     cppflags: ["-std=c++11"],
     cflags: [
         "-DLOG_TAG=\"VrVirtualTouchpad\"",
-        "-Wall",
-        "-Werror",
     ],
     host_ldlibs: ["-llog"],
     name: "virtual_touchpad",
@@ -120,11 +108,7 @@
     srcs: client_src,
     shared_libs: client_shared_libs,
     cppflags: ["-std=c++11"],
-    cflags: [
-        "-DLOG_TAG=\"VirtualTouchpadClient\"",
-        "-Wall",
-        "-Werror",
-    ],
+    cflags: ["-DLOG_TAG=\"VirtualTouchpadClient\""],
     host_ldlibs: ["-llog"],
     name: "libvirtualtouchpadclient",
     tags: ["optional"],