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

experimental/rules_python_external/.bazelrc

diff --git a/experimental/rules_python_external/.bazelrc b/experimental/rules_python_external/.bazelrc
deleted file mode 100644
index fa4bb2e..0000000
--- a/experimental/rules_python_external/.bazelrc
+++ /dev/null
@@ -1,2 +0,0 @@
-build --aspects @mypy_integration//:mypy.bzl%mypy_aspect
-build --output_groups=+mypy

experimental/rules_python_external/WORKSPACE

diff --git a/experimental/rules_python_external/WORKSPACE b/experimental/rules_python_external/WORKSPACE
index ad38285..6361ec0 100644
--- a/experimental/rules_python_external/WORKSPACE
+++ b/experimental/rules_python_external/WORKSPACE
@@ -14,30 +14,3 @@
 
 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()

experimental/rules_python_external/tools/typing/BUILD

diff --git a/experimental/rules_python_external/tools/typing/BUILD b/experimental/rules_python_external/tools/typing/BUILD
deleted file mode 100644
index e69de29..0000000
--- a/experimental/rules_python_external/tools/typing/BUILD
+++ /dev/null

experimental/rules_python_external/tools/typing/mypy.ini

diff --git a/experimental/rules_python_external/tools/typing/mypy.ini b/experimental/rules_python_external/tools/typing/mypy.ini
deleted file mode 100644
index ed392f2..0000000
--- a/experimental/rules_python_external/tools/typing/mypy.ini
+++ /dev/null
@@ -1,24 +0,0 @@
-[mypy]
-# This should be the oldest supported release of Python
-# https://devguide.python.org/#status-of-python-branches
-python_version = 3.5
-
-# Third-Party packages without Stub files
-# https://mypy.readthedocs.io/en/latest/stubs.html
-[mypy-pkginfo.*]
-ignore_missing_imports = True
-
-[mypy-extract_wheels.*]
-check_untyped_defs = True
-disallow_incomplete_defs = True
-disallow_untyped_calls = True
-disallow_untyped_decorators = True
-disallow_untyped_defs = True
-no_implicit_optional = True
-strict_equality = True
-strict_optional = True
-warn_no_return = True
-warn_redundant_casts = True
-warn_return_any = True
-warn_unreachable = True
-warn_unused_ignores = True

experimental/rules_python_external/tools/typing/mypy_version.txt

diff --git a/experimental/rules_python_external/tools/typing/mypy_version.txt b/experimental/rules_python_external/tools/typing/mypy_version.txt
deleted file mode 100644
index 9e7ef88..0000000
--- a/experimental/rules_python_external/tools/typing/mypy_version.txt
+++ /dev/null
@@ -1 +0,0 @@
-mypy==0.780