Revert of [Android] Add a java.lang.System wrapper.

base/BUILD.gn

Index: base/BUILD.gn
diff --git a/base/BUILD.gn b/base/BUILD.gn
index f2b659a9cef546ffa9d9ac3ad4cf201e183a18aa..ccb580f1dab092a83d7307956864eabd033b4c53 100644
--- a/base/BUILD.gn
+++ b/base/BUILD.gn
@@ -96,8 +96,6 @@
     "android/java_handler_thread.h",
     "android/java_runtime.cc",
     "android/java_runtime.h",
-    "android/java_system.cc",
-    "android/java_system.h",
     "android/jni_android.cc",
     "android/jni_android.h",
     "android/jni_array.cc",
@@ -1564,7 +1562,6 @@
 
     deps = [
       ":android_runtime_jni_headers",
-      ":android_system_jni_headers",
     ]
 
     jni_package = "base"
@@ -1574,12 +1571,6 @@
   generate_jar_jni("android_runtime_jni_headers") {
     jni_package = "base"
     classes = [ "java/lang/Runtime.class" ]
-  }
-
-  # GYP: //base.gyp:android_system_jni_headers
-  generate_jar_jni("android_system_jni_headers") {
-    jni_package = "base"
-    classes = [ "java/lang/System.class" ]
   }
 
   # GYP: //base.gyp:base_java