revert regression test to not upload anything

.github/workflows/regression_tests.yml

@@ -39,7 +39,6 @@ jobs:
               - 'requirements.txt'
               - 'devtools/dev-requirements.txt'
               - 'setup.cfg'
-              - '.github/workflows/regression_tests.yml'
 
       - name: Check for relevant changes
         id: check_changes
@@ -118,40 +117,3 @@ jobs:
             verbose: true
           attempt_limit: 10
           attempt_delay: 60000 # ms, 1 min
-
-      - name: Generate 100% Coverage Report
-        if: env.has_changes == 'false'
-        run: |
-          echo '<?xml version="1.0" ?>
-          <coverage line-rate="1" lines-covered="1" lines-valid="1" branches-covered="0" branches-valid="0" complexity="0" version="7.6.1">
-            <sources>
-              <source>/home/runner/work/DESC/DESC/desc</source>
-            </sources>
-            <packages>
-              <package name="." line-rate="1" branch-rate="1" complexity="0">
-                <classes>
-                  <class name="__init__.py" filename="__init__.py" complexity="0" line-rate="1" branch-rate="0">
-                  <methods/>
-                    <lines>
-                      <line number="3" hits="1"/>
-                    </lines>
-                  </class>
-                </classes>
-              </package>
-            </packages>
-          </coverage>' > cov.xml
-
-      - name: Upload 100% Coverage Report if skipped
-        if: env.has_changes == 'false'
-        id: upload-coverage
-        uses: Wandalen/[email protected]
-        with:
-          action: codecov/codecov-action@v3
-          with: |
-            token: ${{ secrets.CODECOV_TOKEN }}
-            name: codecov-umbrella
-            files: ./cov.xml
-            fail_ci_if_error: true
-            verbose: true
-          attempt_limit: 10
-          attempt_delay: 60000 # ms, 1 min