Remove frozen files check temporary to make travis run.

Author: jainvikas8

.travis.yml

@@ -184,35 +184,6 @@ matrix:
           find  -name "*.s" | tee BUILD/badasm |
           sed -e "s/^/Bad Assembler file name found: /" && [ ! -s BUILD/badasm ]
 
-    - <<: *docs-vm
-      name: "Frozen tools check"
-      env: NAME=frozen_tools_check
-      script:
-        # Reject any changes to tools that would require a re-release of the
-        # tools for the online compiler.
-        - >-
-            frozen_files=`\
-                git diff --name-only --diff-filter=d FETCH_HEAD..HEAD \
-                    | egrep \
-                      -e "^tools/build_api*" \
-                      -e "^tools/config*" \
-                      -e "^tools/export*" \
-                      -e "^tools/notifier*" \
-                      -e "^tools/paths*" \
-                      -e "^tools/resources*" \
-                      -e "^tools/targets*" \
-                      -e "^tools/toolchains*" \
-                      -e "^tools/utils*" \
-                      -e "^$"`
-            if [ -z "$frozen_files" ]; then
-                echo "Success!";
-            else
-                echo -e "Failure: Frozen files were modified\n$frozen_files";
-                echo -e "Please see https://os.mbed.com/blog/entry/Introducing-the-new-Mbed-Tools/" \
-                        "\nfor why we've frozen the legacy tools.";
-                false;
-            fi
-
     ### Python Tests ###
     - &pytools-vm
       stage: "Pytest"