no need to optimize on the bool query parser, we already do that in the optimizeQuery method

Author: kimchy

src/main/java/org/elasticsearch/index/query/BoolQueryParser.java

@@ -128,20 +128,6 @@ public Query parse(QueryParseContext parseContext) throws IOException, QueryPars
             return null;
         }
 
-        if (clauses.size() == 1) {
-            BooleanClause clause = clauses.get(0);
-            if (clause.getOccur() == BooleanClause.Occur.MUST) {
-                Query query = clause.getQuery();
-                query.setBoost(boost * query.getBoost());
-                return query;
-            }
-            if (clause.getOccur() == BooleanClause.Occur.SHOULD && minimumNumberShouldMatch > 0) {
-                Query query = clause.getQuery();
-                query.setBoost(boost * query.getBoost());
-                return query;
-            }
-        }
-
         BooleanQuery query = new BooleanQuery(disableCoord);
         for (BooleanClause clause : clauses) {
             query.add(clause);