Remove Docs Team as CODEOWNERS (#909)

Removes Docs as CODEOWNERS from the repo. As part of a project to reduce courtesy reviews, the Docs Team is limiting CODEOWNERS entries to repos that single-source content into the docs site or where our review is critical. We’re still happy to review content if you reach out to us directly.

Author: drichards-87

.github/CODEOWNERS

@@ -29,5 +29,5 @@
 /tests/unit/threadstats/         @DataDog/web-frameworks @DataDog/agent-metric-pipelines
 
 # Documentation
-*.md                             @DataDog/documentation @DataDog/web-frameworks
-LICENSE                          @DataDog/documentation @DataDog/web-frameworks
+*.md                             @DataDog/web-frameworks
+LICENSE                          @DataDog/web-frameworks