Yeah there is. The guy is located in Blackthorn City. Just search the houses!
Go to blackthorn city and find the move deleter's house he will delete anyone of your pokemon's moves including HM's.
The move deleters house in blackthorn city
go to the move deleter to delete moves such as HM
Only Generation 1 Pokemon may be traded between Yellow & Silver. Note: The player using Silver version must only have Generation 1 Pokemon in his/her party and the Pokemon must have learned no moves that did not appear in the Yellow version. Also they mustn't be holding any items that didn't appear in the Yellow version.
yes in lilycove city
go to the city with the 6th gym leader there is a guy somewhere that will delete the moves
no Pokemon knows all the hm moves!
YOU HAVE TO GET TO CANALAVE CITY THEN IF YOU FIND THE POKEMART YOU HAVE TO GO TO THE HOUSE OVER IT THEN ASK THE MAN IF HE CAN DELETE THE MOVES YOU HATE.
Depends on which Pokemon
sometimes.
There should be a move deleter in Pokemon Emerald, try to find this person and you should be able to delete your moves.
No, I don't think you can. I might be wrong, but I think you have to change your Pokemon's moves on the DS then copy the Pokemon to the Wii..