Remove empty method.

This method with a stale todo will probably never be implemented. Remove
it to not confuse new people :)

Bug: none
Change-Id: I8f91a021158d7c275e8230a65746e692d780a1ed
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1993461
Commit-Queue: Stepan Khapugin <stkhapugin@chromium.org>
Reviewed-by: Rohit Rao <rohitrao@chromium.org>
Auto-Submit: Stepan Khapugin <stkhapugin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#729815}

ios/chrome/browser/ui/omnibox/omnibox_view_ios.h

@@ -146,7 +146,7 @@ class OmniboxViewIOS : public OmniboxView,
 
  protected:
   int GetOmniboxTextLength() const override;
-  void EmphasizeURLComponents() override;
+  void EmphasizeURLComponents() override {}
 
  private:
   void SetEmphasis(bool emphasize, const gfx::Range& range) override {}

ios/chrome/browser/ui/omnibox/omnibox_view_ios.mm

@@ -671,19 +671,6 @@ int OmniboxViewIOS::GetOmniboxTextLength() const {
   return [field_ displayedText].length();
 }
 
-void OmniboxViewIOS::EmphasizeURLComponents() {
-// TODO(rohitrao): Implement this function using code like below.  This code
-// is being left out for now because it was not present before the OmniboxView
-// rewrite.
-#if 0
-  // When editing is in progress, the url text is not colored, so there is
-  // nothing to emphasize.  (Calling SetText() in that situation would also be
-  // harmful, as it would reset the carat position to the end of the text.)
-  if (!IsEditingOrEmpty())
-    SetText(GetText());
-#endif
-}
-
 #pragma mark - OmniboxPopupViewSuggestionsDelegate
 
 void OmniboxViewIOS::OnSelectedMatchImageChanged(