remove xxhash.h patch (#29440)

gRPC-C++.podspec

@@ -1843,11 +1843,9 @@ Pod::Spec.new do |s|
   end
 
   # patch include of openssl to openssl_grpc
-  # patch xxhash.h to silent the -Wdocumentation error
   s.prepare_command = <<-END_OF_COMMAND
     set -e
     find src/core -type f \\( -path '*.h' -or -path '*.cc' \\) -print0 | xargs -0 -L1 sed -E -i'.grpc_back' 's;#include <openssl/(.*)>;#if COCOAPODS==1\\\n  #include <openssl_grpc/\\1>\\\n#else\\\n  #include <openssl/\\1>\\\n#endif;g'
-    find third_party/xxhash  -type f -name xxhash.h -print0 | xargs -0 -L1 sed -E -i'.grpc_back' 's;@param([^,]*),;@param\\1 ,;g'
-    find src/core/ third_party/xxhash/ -type f -name '*.grpc_back' -print0 | xargs -0 rm
+    find src/core/ -type f -name '*.grpc_back' -print0 | xargs -0 rm
   END_OF_COMMAND
 end

gRPC-Core.podspec

@@ -2608,11 +2608,9 @@ Pod::Spec.new do |s|
   end
 
   # patch include of openssl to openssl_grpc
-  # patch xxhash.h to silent the -Wdocumentation error
   s.prepare_command = <<-END_OF_COMMAND
     set -e
     find src/core -type f \\( -path '*.h' -or -path '*.cc' \\) -print0 | xargs -0 -L1 sed -E -i'.grpc_back' 's;#include <openssl/(.*)>;#if COCOAPODS==1\\\n  #include <openssl_grpc/\\1>\\\n#else\\\n  #include <openssl/\\1>\\\n#endif;g'
-    find third_party/xxhash  -type f -name xxhash.h -print0 | xargs -0 -L1 sed -E -i'.grpc_back' 's;@param([^,]*),;@param\\1 ,;g'
-    find src/core/ third_party/xxhash/ -type f -name '*.grpc_back' -print0 | xargs -0 rm
+    find src/core/ -type f -name '*.grpc_back' -print0 | xargs -0 rm
   END_OF_COMMAND
 end

templates/gRPC-C++.podspec.template

@@ -204,11 +204,9 @@
     end
 
     # patch include of openssl to openssl_grpc
-    # patch xxhash.h to silent the -Wdocumentation error
     s.prepare_command = <<-END_OF_COMMAND
       set -e
       find src/core -type f \\( -path '*.h' -or -path '*.cc' \\) -print0 | xargs -0 -L1 sed -E -i'.grpc_back' 's;#include <openssl/(.*)>;#if COCOAPODS==1\\\n  #include <openssl_grpc/\\1>\\\n#else\\\n  #include <openssl/\\1>\\\n#endif;g'
-      find third_party/xxhash  -type f -name xxhash.h -print0 | xargs -0 -L1 sed -E -i'.grpc_back' 's;@param([^,]*),;@param\\1 ,;g'
-      find src/core/ third_party/xxhash/ -type f -name '*.grpc_back' -print0 | xargs -0 rm
+      find src/core/ -type f -name '*.grpc_back' -print0 | xargs -0 rm
     END_OF_COMMAND
   end

templates/gRPC-Core.podspec.template

@@ -239,11 +239,9 @@
     end
 
     # patch include of openssl to openssl_grpc
-    # patch xxhash.h to silent the -Wdocumentation error
     s.prepare_command = <<-END_OF_COMMAND
       set -e
       find src/core -type f \\( -path '*.h' -or -path '*.cc' \\) -print0 | xargs -0 -L1 sed -E -i'.grpc_back' 's;#include <openssl/(.*)>;#if COCOAPODS==1\\\n  #include <openssl_grpc/\\1>\\\n#else\\\n  #include <openssl/\\1>\\\n#endif;g'
-      find third_party/xxhash  -type f -name xxhash.h -print0 | xargs -0 -L1 sed -E -i'.grpc_back' 's;@param([^,]*),;@param\\1 ,;g'
-      find src/core/ third_party/xxhash/ -type f -name '*.grpc_back' -print0 | xargs -0 rm
+      find src/core/ -type f -name '*.grpc_back' -print0 | xargs -0 rm
     END_OF_COMMAND
   end