remove bazel-mypy-integration as it is not needed and makes integration into rules_python harder (#353)

Author: Jonathon Belotti

experimental/rules_python_external/.bazelrc

@@ -14,30 +14,3 @@ py_repositories()
 
 load("//:repositories.bzl", "rules_python_external_dependencies")
 rules_python_external_dependencies()
-
-mypy_integration_version = "0.0.7" # latest @ Feb 10th 2020
-
-http_archive(
-    name = "mypy_integration",
-    sha256 = "bf7ecd386740328f96c343dca095a63b93df7f86f8d3e1e2e6ff46e400880077", # for 0.0.7
-    strip_prefix = "bazel-mypy-integration-{version}".format(version = mypy_integration_version),
-    url = "https://github.com/thundergolfer/bazel-mypy-integration/archive/{version}.zip".format(
-        version = mypy_integration_version
-    ),
-)
-
-load(
-    "@mypy_integration//repositories:repositories.bzl",
-    mypy_integration_repositories = "repositories",
-)
-
-mypy_integration_repositories()
-
-load("@mypy_integration//:config.bzl", "mypy_configuration")
-mypy_configuration("//tools/typing:mypy.ini")
-
-load("@mypy_integration//repositories:deps.bzl", mypy_integration_deps = "deps")
-mypy_integration_deps("//tools/typing:mypy_version.txt")
-
-load("@mypy_integration//repositories:pip_repositories.bzl", "pip_deps")
-pip_deps()