Bug 1666831 - engine-override.xml can be removed as its can be replaced by engine.xml. r=Standard8

Differential Revision: https://phabricator.services.mozilla.com/D98103

toolkit/components/search/tests/xpcshell/data/engine-override.xml

@@ -1,8 +0,0 @@
-<SearchPlugin xmlns="http://www.mozilla.org/2006/browser/search/">
-<ShortName>basic</ShortName>
-<Description>override</Description>
-<InputEncoding>UTF-8</InputEncoding>
-<Url type="text/html" method="GET" template="http://searchtest.local">
-  <Param name="search" value="{searchTerms}"/>
-</Url>
-</SearchPlugin>

toolkit/components/search/tests/xpcshell/test_remove_profile_engine.js

@@ -16,7 +16,7 @@ add_task(async function run_test() {
   if (!dir.exists()) {
     dir.create(dir.DIRECTORY_TYPE, FileUtils.PERMS_DIRECTORY);
   }
-  do_get_file("data/engine-override.xml").copyTo(dir, "test-search-engine.xml");
+  do_get_file("data/engine.xml").copyTo(dir, "test-search-engine.xml");
 
   let file = dir.clone();
   file.append("test-search-engine.xml");

toolkit/components/search/tests/xpcshell/xpcshell.ini

@@ -10,7 +10,6 @@ support-files =
   data/engine/manifest.json
   data/engine2.xml
   data/engine2/manifest.json
-  data/engine-override.xml
   data/engine-app/manifest.json
   data/engine-fr.xml
   data/engine-fr/manifest.json