Remove DCHECK in BreakingContextInlineHeader that wasn't much useful

third_party/WebKit/Source/core/layout/line/BreakingContextInlineHeaders.h

Index: third_party/WebKit/Source/core/layout/line/BreakingContextInlineHeaders.h
diff --git a/third_party/WebKit/Source/core/layout/line/BreakingContextInlineHeaders.h b/third_party/WebKit/Source/core/layout/line/BreakingContextInlineHeaders.h
index e8d3640237bfe637097e2f0b0531186e570902c3..92d696f19dc9e35c9963e50b8ee46976eb8f5a8f 100644
--- a/third_party/WebKit/Source/core/layout/line/BreakingContextInlineHeaders.h
+++ b/third_party/WebKit/Source/core/layout/line/BreakingContextInlineHeaders.h
@@ -819,8 +819,6 @@ ALWAYS_INLINE bool BreakingContext::rewindToMidWordBreak(
     len = end - start;
   }
   FloatRect rect = font.selectionRectForText(run, FloatPoint(), 0, 0, len);
-  DCHECK(m_width.fitsOnLine(rect.width() -
-                            1));  // avoid failure when rect is rounded up.
   return rewindToMidWordBreak(wordMeasurement, end, rect.width());
 }