Revert "Bug#36108397 Upgrade to latest protobuf library [patches]"

This reverts commit 0a661dc0d6dd8b498b0ed9f59207b9814d380fbe.

Some mtr tests have leaks originating from
    #7 0x7f579a2a28cc  (/lib/x86_64-linux-gnu/libprotobuf-lite.so.23+0x4d8cc) (BuildId: 1af51cdba58393c136bc541bbfc26ee7568c8c78)
    percona#8 0x7f579a2a44cc in google::protobuf::internal::InitSCCImpl(google::protobuf::internal::SCCInfoBase*) (/lib/x86_64-linux-gnu/libprotobuf-lite.so.23+0x4f4cc) (BuildId: 1af51cdba58393c136bc541bbfc26ee7568c8c78)
    percona#9 0x56352824ad0d in google::protobuf::internal::InitSCC(google::protobuf::internal::SCCInfoBase*) /usr/include/google/protobuf/generated_message_util.h:240:5

Change-Id: I52ea02cee282a9521a2b153b4d883314ed15eb5c

mysql-test/lsan.supp

@@ -53,6 +53,10 @@ leak:java.lang.ProcessImpl*init
 # ndb_sign_keys leaks in some error-exit situations
 leak:ndb_sign_keys
 
+# Internal leak in libprotobuf-lite
+# google::protobuf::internal::InitSCCImpl()
+leak:libprotobuf-lite.so
+
 # Bug#36170703 ndb api tools leak with TLS required on data nodes 
 # Suppress leak detection for them until leak is found.
 leak:ndb_blob_tool