Remove stale search result about "Recent location requests" page

Based on the new design, RecentLocationRequestSeeAllFragment was no
longer used on Location, but it still implemented the indexable
interface to provide stale search result “Recent location requests”
to Settings Search.

Remove the indexable interface from RecentLocationRequestSeeAllFragment
as a quick fix and also correct the related test method name.

Fixes: 192542283
Test: visual
Change-Id: I1a3df5d7319b8831db2f3d3abba19a11b5a83c81

tests/unit/src/com/android/settings/search/CustomSiteMapRegistryTest.java

@@ -62,7 +62,7 @@ public class CustomSiteMapRegistryTest {
     }
 
     @Test
-    public void shouldContainRecentLocationRequestSeeAllFragmentPairs() {
+    public void shouldContainRecentLocationAccessSeeAllFragmentPairs() {
         assertThat(CustomSiteMapRegistry.CUSTOM_SITE_MAP.get(
                 RecentLocationAccessSeeAllFragment.class.getName())).isEqualTo(
                 LocationSettings.class.getName());