diff --git a/CloudCommonProtos/metadata/Rpc/Context/AttributeContext.php b/CloudCommonProtos/metadata/Rpc/Context/AttributeContext.php
deleted file mode 100644
index d7402e286e31..000000000000
--- a/CloudCommonProtos/metadata/Rpc/Context/AttributeContext.php
+++ /dev/null
@@ -1,109 +0,0 @@
-<?php
-# Generated by the protocol buffer compiler.  DO NOT EDIT!
-# source: google/rpc/context/attribute_context.proto
-
-namespace GPBMetadata\Google\Rpc\Context;
-
-class AttributeContext
-{
-    public static $is_initialized = false;
-
-    public static function initOnce() {
-        $pool = \Google\Protobuf\Internal\DescriptorPool::getGeneratedPool();
-
-        if (static::$is_initialized == true) {
-          return;
-        }
-        \GPBMetadata\Google\Protobuf\Any::initOnce();
-        \GPBMetadata\Google\Protobuf\Duration::initOnce();
-        \GPBMetadata\Google\Protobuf\Struct::initOnce();
-        \GPBMetadata\Google\Protobuf\Timestamp::initOnce();
-        $pool->internalAddGeneratedFile(
-            '
-ť
-*google/rpc/context/attribute_context.protogoogle.rpc.contextgoogle/protobuf/duration.protogoogle/protobuf/struct.protogoogle/protobuf/timestamp.proto"ƒ
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-com.google.rpc.contextBAttributeContextProtoP
ZUgoogle.golang.org/genproto/googleapis/rpc/context/attribute_context;attribute_contextř

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-        , true);
-
-        static::$is_initialized = true;
-    }
-}
-