chore(python): Add build rule for //gapic/metadata:metadata-py to pre…

…pare for release

chore(python): Remove moved_proto_library and py_grpc_library rules which are unused

PiperOrigin-RevId: 706864764

gapic/metadata/BUILD.bazel

@@ -59,27 +59,21 @@ go_proto_library(
 ##############################################################################
 load(
     "@com_google_googleapis_imports//:imports.bzl",
-    "moved_proto_library",
-    "py_grpc_library",
     "py_proto_library",
-)
-
-moved_proto_library(
-    name = "metadata_moved_proto",
-    srcs = [":metadata_proto"],
-    deps = [
-    ],
+    "py_gapic_assembly_pkg",
 )
 
 py_proto_library(
     name = "metadata_py_proto",
-    deps = [":metadata_moved_proto"],
+    deps = [":metadata_proto"],
 )
 
-py_grpc_library(
-    name = "metadata_py_grpc",
-    srcs = [":metadata_moved_proto"],
-    deps = [":metadata_py_proto"],
+# Open Source Packages
+py_gapic_assembly_pkg(
+    name = "metadata-py",
+    deps = [
+        ":metadata_py_proto"
+    ],
 )
 
 ##############################################################################