Remove unused method in PreConfiguredTokenFilter (#96747)

The "shouldUseFilterForMultitermQueries" method shows up as unused.
I was trying to determine what the "useFilterForMultitermQueries" flag controls,
apparently the only real use is in the later "create()" method now.

server/src/main/java/org/elasticsearch/index/analysis/PreConfiguredTokenFilter.java

@@ -120,13 +120,6 @@ public final class PreConfiguredTokenFilter extends PreConfiguredAnalysisCompone
         this.create = create;
     }
 
-    /**
-     * Can this {@link TokenFilter} be used in multi-term queries?
-     */
-    public boolean shouldUseFilterForMultitermQueries() {
-        return useFilterForMultitermQueries;
-    }
-
     @Override
     protected TokenFilterFactory create(Version version) {
         if (useFilterForMultitermQueries) {