Change sudo python install to normal

Author: RedFantom

.travis.yml

@@ -14,6 +14,6 @@ install:
   - sudo apt install cmake build-essential
   - sudo -H python -m pip install nose scikit-build
 script:
-  - sudo -H python setup.py install
+  - python setup.py install
   - rm -rf ./gttk
   - python -m nose