Removing requirements.txt installation in documentation

Author: animeshsingh98

.github/workflows/python-app.yml

@@ -48,18 +48,10 @@ jobs:
       uses: actions/setup-python@v3
       with:
         python-version: "3.10"
-    - name: Cache dependencies
-      uses: actions/cache@v2
-      with:
-        path: ~/.cache/pip
-        key: ${{ runner.os}}-python-${{hashFiles('**/requirements.txt')}}
-        restore-keys: |
-          ${{runner.os}}-python-
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
         pip install sphinx sphinx-rtd-theme
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
     - name: Generate Documentation
       run: |
         # stop the build if there are Python syntax errors or undefined names