message: appveyor: rm antrl checkout to use version where utfcpp url is updated
diff: @@ -43,7 +43,7 @@ install:
  - "curl -fsS -o antlr4-complete.jar https://www.antlr.org/download/antlr-%ANTLR_VER%-complete.jar"
  - "git clone https://github.com/antlr/antlr4"
  - "cd antlr4/runtime/Cpp"
  - - "git checkout %ANTLR_VER%"
  + #- "git checkout %ANTLR_VER%"
  - "mkdir build"
  - "cd build"
  - 'cmake %GENERATOR% -DWITH_STATIC_CRT=Off -DCMAKE_BUILD_TYPE=%BUILD_TYPE% -DCMAKE_INSTALL_PREFIX="C:\\Program Files" ..'
  