[MINOR] Disable codecov (apache#3314)

Author: satishkotha

.codecov.yml.broken .codecov.yml

@@ -23,6 +23,13 @@ coverage:
   precision: 2
   round: down
   range: "50...100"
+  status:
+    project: # settings affecting project coverage
+      enabled: no
+
+    # do not run coverage on patch nor changes
+    patch: no
+    changes: no
 
 # Ignoring Paths
 # --------------
@@ -47,14 +54,7 @@ ignore:
   - "hudi-hadoop-mr/src/main/java/com/uber/hoodie/hadoop/HoodieInputFormat.java"
   - "hudi-hadoop-mr/src/main/java/com/uber/hoodie/hadoop/realtime/HoodieRealtimeInputFormat.java"
 
-comment:
-  layout: "reach, diff, flags, files"
-  behavior: default
-  require_changes: false  # if true: only post the comment if coverage changes
-  require_base: no        # [yes :: must have a base report to post]
-  require_head: no        # [yes :: must have a head report to post]
-  branches:               # https://docs.codecov.io/docs/pull-request-comments#branches
-    - "master"
+comment: false
 
 flags:
   hudicli: