Android: Stop generating proguard dump.txt

This is a ~100mb file that isn't actaully used by anything, and that can
be created after-the-fact by a class-dumping tool

BUG=none

Review-Url: https://codereview.chromium.org/2619273002
Cr-Commit-Position: refs/heads/master@{#443277}

build/android/gyp/util/proguard_util.py

@@ -129,7 +129,6 @@ class ProguardCmdBuilder(object):
     # The output jar must be specified after inputs.
     cmd += [
       '-outjars', self._outjar,
-      '-dump', self._outjar + '.dump',
       '-printseeds', self._outjar + '.seeds',
       '-printusage', self._outjar + '.usage',
       '-printmapping', self._outjar + '.mapping',
@@ -158,7 +157,6 @@ class ProguardCmdBuilder(object):
     # Proguard will skip writing these files if they would be empty. Create
     # empty versions of them all now so that they are updated as the build
     # expects.
-    open(self._outjar + '.dump', 'w').close()
     open(self._outjar + '.seeds', 'w').close()
     open(self._outjar + '.usage', 'w').close()
     open(self._outjar + '.mapping', 'w').close()

build/config/android/internal_rules.gni

@@ -766,7 +766,6 @@ if (enable_java_templates) {
       depfile = "${target_gen_dir}/${target_name}.d"
       outputs = [
         _output_jar_path,
-        "$_output_jar_path.dump",
         "$_output_jar_path.seeds",
         "$_output_jar_path.mapping",
         "$_output_jar_path.usage",