[Core] Update grpc to 1.44.0 (#22384)

Updates grpc to 1.44.0 to remove local patch needed for grpc to build.

EDIT: there have been changes to how python is found (mostly removing python2 support) and as such the local python-patch we have for grpc needs to be modified.

This time contributing it to upstream (grpc/grpc#28895) so that it'll get added in a newer version!

For anyone that comes across this:
Here is the error itself for why we need the grpc-python.patch file: https://buildkite.com/ray-project/ray-builders-pr/builds/24659#d293616f-225d-41f9-8de2-03780f12b13f/2386-2416

Author: acxz

bazel/ray_deps_setup.bzl

@@ -236,13 +236,11 @@ def ray_deps_setup():
     auto_http_archive(
         name = "com_github_grpc_grpc",
         # NOTE: If you update this, also update @boringssl's hash.
-        url = "https://github.com/grpc/grpc/archive/refs/tags/v1.43.2.tar.gz",
-        sha256 = "b74ce7d26fe187970d1d8e2c06a5d3391122f7bc1fdce569aff5e435fb8fe780",
+        url = "https://github.com/grpc/grpc/archive/refs/tags/v1.44.0.tar.gz",
+        sha256 = "8c05641b9f91cbc92f51cc4a5b3a226788d7a63f20af4ca7aaca50d92cc94a0d",
         patches = [
             "@com_github_ray_project_ray//thirdparty/patches:grpc-cython-copts.patch",
             "@com_github_ray_project_ray//thirdparty/patches:grpc-python.patch",
-            # Delete after upgrading from 1.44.0
-            "@com_github_ray_project_ray//thirdparty/patches:grpc-remove-distutils.patch",
         ],
     )
 

thirdparty/patches/grpc-python.patch

@@ -1,16 +1,17 @@
+From 30bd860bd8a8bb223f3aab86afc2ed28c5bd5a7d Mon Sep 17 00:00:00 2001
+From: acxz <17132214+acxz@users.noreply.github.com>
+Date: Thu, 17 Feb 2022 11:07:42 -0500
+Subject: [PATCH] fix python command on windows
+
+---
+ third_party/py/python_configure.bzl | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
 diff --git third_party/py/python_configure.bzl third_party/py/python_configure.bzl
+index 4e5218118ee5..7ec4459d6109 100644
 --- third_party/py/python_configure.bzl
 +++ third_party/py/python_configure.bzl
-@@ -177,7 +177,7 @@ def _get_bash_bin(repository_ctx):
-     if bash_bin != None:
-         return bash_bin
-     else:
--        bash_bin_path = repository_ctx.which("bash")
-+        bash_bin_path = repository_ctx.which("bash" if not _is_windows(repository_ctx) else "sh.exe")
-         if bash_bin_path != None:
-             return str(bash_bin_path)
-         else:
-@@ -208,7 +208,7 @@ def _get_python_lib(repository_ctx, python_bin, lib_path_key):
+@@ -206,7 +206,7 @@ def _get_python_lib(repository_ctx, python_bin, lib_path_key):
          "    paths.append(path)\n" + "if len(paths) >=1:\n" +
          "  print(paths[0])\n" + "END"
      )
@@ -19,45 +20,3 @@ diff --git third_party/py/python_configure.bzl third_party/py/python_configure.b
      result = repository_ctx.execute([_get_bash_bin(repository_ctx), "-c", cmd])
      return result.stdout.strip("\n")
 
-@@ -293,11 +293,13 @@ def _create_single_version_package(
- 
-     python_bin = _get_python_bin(repository_ctx, bin_path_key, default_bin_path, allow_absent)
-     if (python_bin == None or
--        _check_python_bin(repository_ctx,
--                          python_bin,
--                          bin_path_key,
--                          allow_absent) == None) and allow_absent:
--            python_include_rule = empty_include_rule
-+        _check_python_bin(
-+            repository_ctx,
-+            python_bin,
-+            bin_path_key,
-+            allow_absent,
-+        ) == None) and allow_absent:
-+        python_include_rule = empty_include_rule
-     else:
-         python_lib = _get_python_lib(repository_ctx, python_bin, lib_path_key)
-         _check_python_lib(repository_ctx, python_lib)
-@@ -348,17 +350,17 @@ def _python_autoconf_impl(repository_ctx):
-         repository_ctx,
-         "_python2",
-         _PYTHON2_BIN_PATH,
--        "python2",
-+        "python" if not _is_windows(repository_ctx) else "python.exe",
-         _PYTHON2_LIB_PATH,
--        True
-+        True,
-     )
-     _create_single_version_package(
-         repository_ctx,
-         "_python3",
-         _PYTHON3_BIN_PATH,
--        "python3",
-+        "python3" if not _is_windows(repository_ctx) else "python.exe",
-         _PYTHON3_LIB_PATH,
--        False
-+        False,
-     )
-     _tpl(repository_ctx, "BUILD")
- 
---