fix: remove travis.yml

fix: typo

left unnecessary ` ; fi` while copy paste

Author: Trdls

.github/workflows/main.yml

@@ -27,7 +27,7 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         pip install -r requirements.txt && pip install -r requirements-dev.txt
-        pip install -e .; fi
+        pip install -e .
     - name: Lint with flake8
       run: |
         # stop the build if there are Python syntax errors or undefined names