Revert "wip"

This reverts commit 1b168aba1c.

src/Plugins/Tia/CoverageMerger.php

@@ -172,12 +172,6 @@ final class CoverageMerger
             return null;
         }
 
-        if (! $value instanceof CodeCoverage) {
+        return $value instanceof CodeCoverage ? $value : null;
-            return null;
-        }
-
-        $value->doNotCacheStaticAnalysis();
-
-        return $value;
     }
 }