Merge pull request #21598 from longkb/remove_duplicated_words

Remove duplicated words

src/csharp/README.md

@@ -54,7 +54,7 @@ See [Experimentally supported platforms](experimental) for instructions.
 NUGET DEVELOPMENT FEED (NIGHTLY BUILDS)
 --------------
 
-In production, you should use officially released stable packages available on http://nuget.org, but if you want to test the newest upstream bug fixes and features early, you can can use the development nuget feed where new nuget builds are uploaded nightly.
+In production, you should use officially released stable packages available on http://nuget.org, but if you want to test the newest upstream bug fixes and features early, you can use the development nuget feed where new nuget builds are uploaded nightly.
 
 Feed URL (NuGet v2): https://grpc.jfrog.io/grpc/api/nuget/grpc-nuget-dev
 

src/php/ext/grpc/channel.c

@@ -206,7 +206,7 @@ target_bound_le_t* update_and_get_target_upper_bound(char* target, int bound) {
   php_grpc_int key_len = strlen(target);
   if (!(PHP_GRPC_PERSISTENT_LIST_FIND(&grpc_target_upper_bound_map, target,
       key_len, rsrc))) {
-    // Target is not not persisted.
+    // Target is not persisted.
     php_grpc_zend_resource new_rsrc;
     target_bound_status = malloc(sizeof(target_bound_le_t));
     if (bound == -1) {

src/python/grpcio/grpc/__init__.py

@@ -1589,7 +1589,7 @@ def ssl_channel_credentials(root_certificates=None,
       private_key: The PEM-encoded private key as a byte string, or None if no
         private key should be used.
       certificate_chain: The PEM-encoded certificate chain as a byte string
-        to use or or None if no certificate chain should be used.
+        to use or None if no certificate chain should be used.
 
     Returns:
       A ChannelCredentials for use with an SSL-enabled Channel.