Remove the new git branching model from this pr

cmake/version.cmake

@@ -11,20 +11,6 @@ while ("${PADDLE_VERSION}" STREQUAL "")
     RESULT_VARIABLE GIT_RESULT
     ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE)
   if (NOT ${GIT_RESULT})
-    # Get current branch name
-    execute_process(
-      COMMAND ${GIT_EXECUTABLE} rev-parse --abbrev-ref ${tmp_version}
-      WORKING_DIRECTORY ${PADDLE_SOURCE_DIR}
-      OUTPUT_VARIABLE GIT_BRANCH_NAME
-      RESULT_VARIABLE GIT_BRANCH_RESULT
-      ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE)
-    # If current branch is develop, then version will be latest
-    if (NOT ${GIT_BRANCH_RESULT})
-      if (${GIT_BRANCH_NAME} MATCHES "develop")
-        set(PADDLE_VERSION "latest")
-        continue()
-      endif()
-    endif()
     # Check the tag is a correct version
     if (${GIT_TAG_NAME} MATCHES "${COMMIT_VERSION_REGEX}")
       # if no tag was found, set PADDLE_VERSION to latest