[TYPO3-ttnews] Delte RTEhtml tables cells <p> tag in tt_news

[Xatu Cans]

Hi, I'm trying to delete the <p> tag  generated  automatically inside tables 
cell. I've wrote this code in the TS setup of my page:

lib.parseFunc_RTE.externalBlocks.table.HTMLtableCells.default >
lib.parseFunc_RTE.externalBlocks.table.HTMLtableCells.default.stdWrap.parseFunc 
=< lib.parseFunc

it works perfectly, but when I insert a table with RTEhtml inside tt_news, 
the <p> reappears. How can I delete it?