Percolator: Never cache filters and field data in percolator for the percolator query parsing part.

Closes #6553

Conflicts:
	src/main/java/org/elasticsearch/index/query/HasChildFilterParser.java
	src/main/java/org/elasticsearch/index/query/HasChildQueryParser.java
	src/main/java/org/elasticsearch/index/query/functionscore/DecayFunctionParser.java