Remove duplicate pip install

Author: tekktrik

build/action.yml

@@ -65,11 +65,6 @@ runs:
   - name: Install pytest
     shell: bash
     run: pip install pytest
-  - name: Install dependencies
-    shell: bash
-    run: |
-      pip install -r requirements.txt
-      pip install -r optional_requirements.txt
   - name: Run pytest
     shell: bash
     run: |