Revert "Android: Allow per-target lint suppression configuration"

This reverts commit 1dd22ad042686bbf63b2f89efb466528cc682ffe.

Reason for revert: 
Breaks when lint_suppressions_file is assigned within
//build_overrides/build.gni

Original change's description:
> Android: Allow per-target lint suppression configuration
> 
> This change allows for Android lint suppression configurations
> to be defined on a per-target basis (assuming said target is
> "Android lint capable") rather than having one global config.
> This will allow embedders to keep upstream's lint config for
> Chromium targets (w/o patching), while using a separate config
> for the embedding application.
> 
> Bug: 737897
> Change-Id: Ieccb95767e0ce541522d7a53edbe734c5bbfe6dc
> Reviewed-on: https://chromium-review.googlesource.com/698297
> Reviewed-by: Andrew Grieve <agrieve@chromium.org>
> Commit-Queue: Andrew Grieve <agrieve@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#506393}

TBR=agrieve@chromium.org,justmoto@amazon.com

Change-Id: Ib15a61731179cc9ffc8d415844cfe8fbbc8e68eb
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 737897
Reviewed-on: https://chromium-review.googlesource.com/701014
Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Commit-Queue: Andrew Grieve <agrieve@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#506475}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 2898491636d1bfc1bfddee39f07c7b8a6e1c6eb8

config/android/internal_rules.gni

@@ -761,9 +761,7 @@ if (enable_java_templates) {
         deps = []
       }
 
-      if (defined(invoker.lint_suppressions_file)) {
-        lint_suppressions_file = invoker.lint_suppressions_file
-      } else if (!defined(lint_suppressions_file)) {
+      if (!defined(lint_suppressions_file)) {
         lint_suppressions_file = "//build/android/lint/suppressions.xml"
       }
 
@@ -2712,7 +2710,6 @@ if (enable_java_templates) {
       if (_chromium_code) {
         _has_lint_target = true
         android_lint("${_template_name}__lint") {
-          forward_variables_from(invoker, [ "lint_suppressions_file" ])
           android_manifest = _android_manifest
           build_config = _build_config