Revert "Added support for visual debugging on Android Studio"

This reverts commit 222c9cfd1b3f50d21d4a1f93b0b52dd4973fe1b5.

Reason for revert: Breaks documented workflow.

Original change's description:
> Added support for visual debugging on Android Studio
> 
> Change-Id: Icaf848c31167db10d6fbb13d74c7287b03628fb6
> Bug: skia:
> Reviewed-on: https://skia-review.googlesource.com/130144
> Reviewed-by: Derek Sollenberger <djsollen@google.com>

TBR=djsollen@google.com,mtklein@google.com,bsalomon@google.com,halcanary@google.com,bungeman@google.com,ziadb@google.com

Change-Id: I6e7ac2d16d9a0f267d75cd202fd4975be36da4f5
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/131601
Reviewed-by: Hal Canary <halcanary@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
diff --git a/gn/BUILD.gn b/gn/BUILD.gn
index 80b7f3f..2e38e27 100644
--- a/gn/BUILD.gn
+++ b/gn/BUILD.gn
@@ -143,7 +143,7 @@
     libs += [ malloc ]
   }
 
-  if (is_android && !is_android_cmake) {
+  if (is_android) {
     asmflags += [ "--target=$ndk_target" ]
     cflags += [
       "--sysroot=$ndk/sysroot",