[ZPS] Cleans up omnibox features for on-focus/on-clobber zps on Web/SRP

Deletes omnibox::kOnFocusSuggestionsContextualWeb which is disabled by
default, unused, and redundant. Also renames the features for
on-focus/on-clobber on Web/SRP and modifies the comments for clarity.

This CL does not result in any change in behavior.

Bug: 1340079
Change-Id: I2352f7c845ca5c168ba3b4f5067270f331768f2d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3727311
Commit-Queue: Moe Ahmadi <[email protected]>
Reviewed-by: Tomasz Wiszkowski <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1019859}
diff --git a/chrome/browser/flag_descriptions.cc b/chrome/browser/flag_descriptions.cc
index be6f601d..3fcb284 100644
--- a/chrome/browser/flag_descriptions.cc
+++ b/chrome/browser/flag_descriptions.cc
@@ -1917,16 +1917,16 @@
 const char kOmniboxSiteSearchStarterPackDescription[] =
     "Enables @history, @bookmarks, and @tabs scopes in Omnibox Site "
     "Search/Keyword Mode";
-const char kOmniboxOnFocusSuggestionsContextualWebAllowSRPName[] =
+const char kOmniboxFocusTriggersSRPZeroSuggestName[] =
     "Allow Omnibox contextual web on-focus suggestions on the SRP";
-const char kOmniboxOnFocusSuggestionsContextualWebAllowSRPDescription[] =
+const char kOmniboxFocusTriggersSRPZeroSuggestDescription[] =
     "Enables on-focus suggestions on the Search Results page. "
     "Requires on-focus suggestions for the contextual web to be enabled. "
     "Will only work if user is signed-in and syncing.";
 
-const char kOmniboxOnFocusSuggestionsContextualWebName[] =
+const char kOmniboxFocusTriggersContextualWebZeroSuggestName[] =
     "Omnibox on-focus suggestions for the contextual Web";
-const char kOmniboxOnFocusSuggestionsContextualWebDescription[] =
+const char kOmniboxFocusTriggersContextualWebZeroSuggestDescription[] =
     "Enables on-focus suggestions on the Open Web, that are contextual to the "
     "current URL. Will only work if user is signed-in and syncing, or is "
     "otherwise eligible to send the current page URL to the suggest server.";