Revert of [Android] JUnit runner + gyp changes. (patchset #15 id:280001 of https://codereview.chromium.org/574433003/)

Reason for revert:
Speculative revert: Android test started flaking a ton after this landed. Affected targets androidwebview_instrumentation_tests, chromeshell_instrumentation_tests, contentshell_instrumentation_tests. This CL seems the most likely in the blamelist of https://build.chromium.org/p/chromium.linux/builders/Android%20Tests/builds/15905.

Original issue's description:
> [Android] JUnit runner + gyp changes.
>
> This adds Java code for running junit tests, as well as gyp targets for
> both runnable and non-runnable host-side JARs.
>
> BUG=316383
>
> Committed: https://crrev.com/2e56d4508e33de5fc60bbbb41c5a5d5534e88174
> Cr-Commit-Position: refs/heads/master@{#296340}

TBR=cjhopman@chromium.org,nyquist@chromium.org,aurimas@chromium.org,jbudorick@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=316383

Review URL: https://codereview.chromium.org/597123002

Cr-Commit-Position: refs/heads/master@{#296384}

1 files changed, 0 insertions, 102 deletions

diff --git a/build/host_jar.gypi b/build/host_jar.gypi
deleted file mode 100644
index 6ccc1bd..0000000
--- a/build/host_jar.gypi
+++ /dev/null
@@ -1,102 +0,0 @@
-# Copyright 2014 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-# This file is meant to be included into a target to provide a rule to build
-# a JAR file for use on a host in a consistent manner.
-#
-# To use this, create a gyp target with the following form:
-# {
-#   'target_name': 'my_jar',
-#   'type': 'none',
-#   'variables': {
-#     'src_paths': [
-#       'path/to/directory',
-#       'path/to/other/directory',
-#       'path/to/individual_file.java',
-#       ...
-#     ],
-#   },
-#   'includes': [ 'path/to/this/gypi/file' ],
-# }
-#
-# Required variables:
-#   src_paths - A list of all paths containing java files that should be
-#     included in the jar. Paths can be either directories or files.
-# Optional/automatic variables:
-#   excluded_src_paths - A list of all paths that should be excluded from
-#     the jar.
-#   generated_src_dirs - Directories containing additional .java files
-#     generated at build time.
-#   input_jars_paths - A list of paths to the jars that should be included
-#     in the classpath.
-#   main_class - The class containing the main() function that should be called
-#     when running the jar file.
-#   jar_excluded_classes - A list of .class files that should be excluded
-#     from the jar.
-
-{
-  'dependencies': [
-    '<(DEPTH)/build/android/setup.gyp:build_output_dirs',
-  ],
-  'variables': {
-    'classes_dir': '<(intermediate_dir)/classes',
-    'excluded_src_paths': [],
-    'generated_src_dirs': [],
-    'input_jars_paths': [],
-    'intermediate_dir': '<(SHARED_INTERMEDIATE_DIR)/<(_target_name)',
-    'jar_dir': '<(PRODUCT_DIR)/lib.java',
-    'jar_excluded_classes': [],
-    'jar_name': '<(_target_name).jar',
-    'jar_path': '<(jar_dir)/<(jar_name)',
-    'main_class%': '',
-    'stamp': '<(intermediate_dir)/jar.stamp',
-  },
-  'all_dependent_settings': {
-    'variables': {
-      'input_jars_paths': ['<(jar_path)']
-    },
-  },
-  'actions': [
-    {
-      'action_name': 'javac_<(_target_name)',
-      'message': 'Compiling <(_target_name) java sources',
-      'variables': {
-        'extra_options': [],
-        'java_sources': [ '<!@(find <@(src_paths) -name "*.java")' ],
-        'conditions': [
-          ['"<(excluded_src_paths)" != ""', {
-            'java_sources!': ['<!@(find <@(excluded_src_paths) -name "*.java")']
-          }],
-          ['"<(jar_excluded_classes)" != ""', {
-            'extra_options': ['--excluded-classes=<(jar_excluded_classes)']
-          }],
-          ['">(main_class)" != ""', {
-            'extra_options': ['--main-class=>(main_class)']
-          }]
-        ],
-      },
-      'inputs': [
-        '<(DEPTH)/build/android/gyp/util/build_utils.py',
-        '<(DEPTH)/build/android/gyp/javac.py',
-        '^@(java_sources)',
-        '>@(input_jars_paths)',
-      ],
-      'outputs': [
-        '<(jar_path)',
-        '<(stamp)',
-      ],
-      'action': [
-        'python', '<(DEPTH)/build/android/gyp/javac.py',
-        '--classpath=>(input_jars_paths)',
-        '--src-gendirs=>(generated_src_dirs)',
-        '--chromium-code=<(chromium_code)',
-        '--stamp=<(stamp)',
-        '--jar-path=<(jar_path)',
-        '<@(extra_options)',
-        '^@(java_sources)',
-      ],
-    },
-  ]
-}
-