Remove codecov context

Author: bagel897

.circleci/config.yml

@@ -428,7 +428,6 @@ workflows:
           extra_repos: false
       - oss-codemod-tests:
           context:
-            - Codecov
             - GHE
             - slack
           matrix:
@@ -437,16 +436,13 @@ workflows:
               size: [large]
   pr_checks:
     jobs:
-      - unit-tests:
-          context:
-            - Codecov
+      - unit-tests
       - hold-codemod-tests:
           type: approval
       - hold-large-oss-codemod-tests:
           type: approval
       - codemod-tests:
           context:
-            - Codecov
             - GHE
             - Codemod
             - slack
@@ -456,7 +452,6 @@ workflows:
       - doctests
       - oss-codemod-tests:
           context:
-            - Codecov
             - GHE
             - slack
           matrix:
@@ -466,7 +461,6 @@ workflows:
       - oss-codemod-tests:
           name: large-oss-codemod-tests
           context:
-            - Codecov
             - GHE
             - slack
           matrix: