Reverts third_party/protobuf: Update to HEAD (f52e188fe4)

third_party/protobuf/objectivec/google/protobuf/SourceContext.pbobjc.h

Index: third_party/protobuf/objectivec/google/protobuf/SourceContext.pbobjc.h
diff --git a/third_party/protobuf/objectivec/google/protobuf/SourceContext.pbobjc.h b/third_party/protobuf/objectivec/google/protobuf/SourceContext.pbobjc.h
index 799d190ac60f647b50a50b31fbf00efe4ef40068..8775348e953e3e62b116a027f182c3dff85bda26 100644
--- a/third_party/protobuf/objectivec/google/protobuf/SourceContext.pbobjc.h
+++ b/third_party/protobuf/objectivec/google/protobuf/SourceContext.pbobjc.h
@@ -1,23 +1,10 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: google/protobuf/source_context.proto
 
-// This CPP symbol can be defined to use imports that match up to the framework
-// imports needed when using CocoaPods.
-#if !defined(GPB_USE_PROTOBUF_FRAMEWORK_IMPORTS)
- #define GPB_USE_PROTOBUF_FRAMEWORK_IMPORTS 0
-#endif
-
-#if GPB_USE_PROTOBUF_FRAMEWORK_IMPORTS
- #import <Protobuf/GPBProtocolBuffers.h>
-#else
- #import "GPBProtocolBuffers.h"
-#endif
+#import "GPBProtocolBuffers.h"
 
-#if GOOGLE_PROTOBUF_OBJC_VERSION < 30002
-#error This file was generated by a newer version of protoc which is incompatible with your Protocol Buffer library sources.
-#endif
-#if 30002 < GOOGLE_PROTOBUF_OBJC_MIN_SUPPORTED_VERSION
-#error This file was generated by an older version of protoc which is incompatible with your Protocol Buffer library sources.
+#if GOOGLE_PROTOBUF_OBJC_GEN_VERSION != 30001
+#error This file was generated by a different version of protoc which is incompatible with your Protocol Buffer library sources.
 #endif
 
 // @@protoc_insertion_point(imports)
@@ -31,16 +18,14 @@ NS_ASSUME_NONNULL_BEGIN
 
 #pragma mark - GPBSourceContextRoot
 
-/**
- * Exposes the extension registry for this file.
- *
- * The base class provides:
- * @code
- *   + (GPBExtensionRegistry *)extensionRegistry;
- * @endcode
- * which is a @c GPBExtensionRegistry that includes all the extensions defined by
- * this file and all files that it depends on.
- **/
+/// Exposes the extension registry for this file.
+///
+/// The base class provides:
+/// @code
+///   + (GPBExtensionRegistry *)extensionRegistry;
+/// @endcode
+/// which is a @c GPBExtensionRegistry that includes all the extensions defined by
+/// this file and all files that it depends on.
 @interface GPBSourceContextRoot : GPBRootObject
 @end
 
@@ -50,16 +35,12 @@ typedef GPB_ENUM(GPBSourceContext_FieldNumber) {
   GPBSourceContext_FieldNumber_FileName = 1,
 };
 
-/**
- * `SourceContext` represents information about the source of a
- * protobuf element, like the file in which it is defined.
- **/
+/// `SourceContext` represents information about the source of a
+/// protobuf element, like the file in which it is defined.
 @interface GPBSourceContext : GPBMessage
 
-/**
- * The path-qualified name of the .proto file that contained the associated
- * protobuf element.  For example: `"google/protobuf/source_context.proto"`.
- **/
+/// The path-qualified name of the .proto file that contained the associated
+/// protobuf element.  For example: `"google/protobuf/source.proto"`.
 @property(nonatomic, readwrite, copy, null_resettable) NSString *fileName;
 
 @end