reverted unneeded files

Author: daniel-sanche

google/cloud/bigtable/data/_async/metrics_interceptor.py

@@ -91,6 +91,10 @@ async def _get_metadata(source) -> dict[str, str | bytes] | None:
 class AsyncBigtableMetricsInterceptor(
     UnaryUnaryClientInterceptor, UnaryStreamClientInterceptor
 ):
+    """
+    An async gRPC interceptor to add client metadata and print server metadata.
+    """
+
     @CrossSync.convert
     @_with_active_operation
     async def intercept_unary_unary(

google/cloud/bigtable/data/_metrics/handlers/_stdout.py

@@ -58,6 +58,10 @@ def _get_metadata(source) -> dict[str, str | bytes] | None:
 class BigtableMetricsInterceptor(
     UnaryUnaryClientInterceptor, UnaryStreamClientInterceptor
 ):
+    """
+    An async gRPC interceptor to add client metadata and print server metadata.
+    """
+
     @_with_active_operation
     def intercept_unary_unary(
         self, operation, continuation, client_call_details, request