Cleanup unnecessary system_webview_apk_tmpl

This is no longer needed now that we have system_webview_apk_or_module_tmpl

Change-Id: I3b026070499896e3061e60179d5f92bc11e52f85
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2001742
Auto-Submit: Clark DuVall <cduvall@chromium.org>
Reviewed-by: Richard Coles <torne@chromium.org>
Commit-Queue: Clark DuVall <cduvall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#732045}

android_webview/BUILD.gn

@@ -26,7 +26,7 @@ if (enable_resource_whitelist_generation) {
 
 if (public_android_sdk) {
   template("standalone_system_webview_apk_tmpl") {
-    system_webview_apk_tmpl(target_name) {
+    system_webview_apk_or_module_tmpl(target_name) {
       forward_variables_from(invoker, "*")
       android_manifest = system_webview_android_manifest
       android_manifest_dep =

android_webview/system_webview_apk_tmpl.gni

@@ -232,11 +232,3 @@ template("system_webview_apk_or_module_tmpl") {
     }
   }
 }
-
-# TODO(cduvall): Remove this once src/clank uses
-# system_webview_apk_or_module_tmpl.
-template("system_webview_apk_tmpl") {
-  system_webview_apk_or_module_tmpl(target_name) {
-    forward_variables_from(invoker, "*")
-  }
-}