remove unnecessary changes

Author: lizziepaquette

config/config.exs

@@ -1,4 +1 @@
 use Mix.Config
-
-config :protobuf, extensions: :enabled
-

plz.txt

@@ -0,0 +1,2 @@
+deps/protobuf/src: warning: directory does not exist.
+Could not make proto path relative: test/support/wrapper_with_extension.proto: No such file or directory

src/elixirpb.proto

@@ -23,20 +23,8 @@ message FileOptions {
   // will be "Hello.Request". But with module_prefix "Foo", the message will be
   // "Foo.Request"
   optional string module_prefix = 1;
-  extensions 1000 to max;
 }
 
 extend google.protobuf.FileOptions {
   optional FileOptions file = 1047;
 }
-
-message FieldOptions {
-  // optional string extype = 1;
-  extensions 1000 to max;
-}
-
-extend google.protobuf.FieldOptions {
-  // TODO: determine appropriate number
-  optional FieldOptions field = 65007;
-}
-