Remove the go form of integration testing (#170)

rules_go provides a better way to approach this problem.

BUILD

@@ -1,5 +1,3 @@
-load("@bazel_gazelle//:def.bzl", "gazelle")
-
 package_group(
     name = "internal",
     packages = ["//..."],
@@ -15,11 +13,7 @@ filegroup(
     name = "all_bzl",
     srcs = [
         ":root_bzl",
-        "//go:bzl",
         "//tools",
     ],
     visibility = ["//:internal"],
 )
-
-# gazelle:prefix github.com/bazelbuild/bazel-integration-testing
-gazelle(name = "gazelle")

CODEOWNERS

@@ -1,12 +1,8 @@
 # Default owner
 *                         @ittaiz
-*                         @achew22
 
 # Java owners
 java/*                    @ittaiz
 javatests/*               @ittaiz
 
 # Python owners
-
-# Go owners
-go/*                      @jayconrod, @achew22

README.md

@@ -49,25 +49,6 @@ load("@build_bazel_integration_testing//tools:repositories.bzl", "bazel_binaries
 #depend on the Bazel binaries, also accepts an array of versions
 bazel_binaries()
 
-http_archive(
-    name = "io_bazel_rules_go",
-    sha256 = "f04d2373bcaf8aa09bccb08a98a57e721306c8f6043a2a0ee610fd6853dcde3d",
-    urls = [
-        "https://github.com/bazelbuild/rules_go/releases/download/0.18.6/rules_go-0.18.6.tar.gz",
-    ],
-)
-
-http_archive(
-    name = "bazel_gazelle",
-    sha256 = "7fc87f4170011201b1690326e8c16c5d802836e3a0d617d8f75c3af2b23180c4",
-    urls = [
-        "https://github.com/bazelbuild/bazel-gazelle/releases/download/0.18.2/bazel-gazelle-0.18.2.tar.gz",
-    ],
-)
-
-load("@io_bazel_rules_go//go:deps.bzl", "go_rules_dependencies")
-
-go_rules_dependencies()
 ```
 For JVM tests one would like to call the below instead of the above call to `bazel_binaries` since it does that plus more dependencies needed for `java_test`:
 ```python
@@ -78,7 +59,18 @@ bazel_java_integration_test_deps()
 ## Usage
 ### [Jvm](java/README.md)  
 ### Go
-TODO
+
+[`rules_go`](https://github.com/bazelbuild/rules_go) already supports,
+natively, an integration testing framework for validating your rules. If you
+need to write integration tests, please refer to the
+[godoc](https://godoc.org/github.com/bazelbuild/rules_go/go/tools/bazel_testing)
+and associated
+[`go_bazel_test` rule.](https://github.com/bazelbuild/rules_go/blob/master/go/tools/bazel_testing/def.bzl).
+For example usage, `rules_go` itself is tested using this rule and many
+packages inside of the
+[`tests`](https://github.com/bazelbuild/rules_go/blob/master/tests/) package
+can be used as examples.
+
 ### Python
 TODO
 

WORKSPACE

@@ -90,36 +90,6 @@ jvm_maven_import_external(
     ],
 )
 
-## golang
-
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-http_archive(
-    name = "io_bazel_rules_go",
-    sha256 = "f04d2373bcaf8aa09bccb08a98a57e721306c8f6043a2a0ee610fd6853dcde3d",
-    urls = [
-        "https://github.com/bazelbuild/rules_go/releases/download/0.18.6/rules_go-0.18.6.tar.gz",
-    ],
-)
-
-http_archive(
-    name = "bazel_gazelle",
-    sha256 = "d8c45ee70ec39a57e7a05e5027c32b1576cc7f16d9dd37135b0eddde45cf1b10",
-    urls = [
-        "https://github.com/bazelbuild/bazel-gazelle/releases/download/v0.20.0/bazel-gazelle-v0.20.0.tar.gz",
-    ],
-)
-
-load("@io_bazel_rules_go//go:deps.bzl", "go_register_toolchains", "go_rules_dependencies")
-
-go_rules_dependencies()
-
-go_register_toolchains()
-
-load("@bazel_gazelle//:deps.bzl", "gazelle_dependencies")
-
-gazelle_dependencies()
-
 #### Use remote resources
 
 ## java

bazel_integration_test.bzl

@@ -35,10 +35,6 @@ load(
     "//tools:import.bzl",
     bazel_external_dependency_archive_ = "bazel_external_dependency_archive",
 )
-load(
-    "//go:bazel_integration_test.bzl",
-    bazel_go_integration_test_ = "bazel_go_integration_test",
-)
 
 print(
     "WARNING: bazel_integration_test.bzl is deprecated and will go away in " +
@@ -59,5 +55,3 @@ bazel_java_integration_test_deps = bazel_java_integration_test_deps_
 bazel_py_integration_test = bazel_py_integration_test_
 
 bazel_external_dependency_archive = bazel_external_dependency_archive_
-
-bazel_go_integration_test = bazel_go_integration_test_