Remove spellchecker feedback.

components/spellcheck/common/spellcheck_common.h

Index: components/spellcheck/common/spellcheck_common.h
diff --git a/components/spellcheck/common/spellcheck_common.h b/components/spellcheck/common/spellcheck_common.h
index 5b7e93f0cdc12fb82d654daf78b3f7e2b4182e25..6c6f75c3407b6ea1007c9c054885a626ab434f27 100644
--- a/components/spellcheck/common/spellcheck_common.h
+++ b/components/spellcheck/common/spellcheck_common.h
@@ -16,17 +16,6 @@ class FilePath;
 
 namespace spellcheck {
 
-// The number of hours that a session of feedback for spelling service lasts.
-// After this number of hours passes, all feedback.
-static const int kSessionHours = 6;
-
-// The number of context words to keep on either side of a misspelling for
-// spelling service feedback.
-static const int kContextWordCount = 2;
-
-// The number of seconds between sending feedback to spelling service.
-static const int kFeedbackIntervalSeconds = 1800;  // 30 minutes
-
 // Max number of dictionary suggestions.
 static const int kMaxSuggestions = 5;