Removing extra robotstatuschecker installation from Travis (#1386)

Author: aaltat

.travis.yml

@@ -63,13 +63,12 @@ before_script:
       export PATH="~/jython/bin:$PATH";
       export INTERPRETER=~/jython/bin/jython;
     fi
-  - python -m pip install robotstatuschecker
   - echo $INTERPRETER
   - $INTERPRETER --version
   - $INTERPRETER -m pip install .
   - if [ "$JYTHON" == "true" ]; then
       $INTERPRETER -m pip install mockito;
-      $INTERPRETER -m pip install robotstatuschecker;
+      python -m pip install robotstatuschecker;
       $INTERPRETER -m pip install -r requirements.txt;
     else
       $INTERPRETER -m pip install -r requirements-dev.txt;