Johnny Manziel -- THE MONEY CELEBRATION ... IS DEAD

R.I.P. Johnny Manziel's money celebration ... 'cause the QB says it's officially DEAD TO HIM.

Manziel was speaking to reporters in Cleveland earlier today and said he was officially retiring his trademark move ... saying it's part of a brand new quieter, less trouble-making Manziel.

"Whatever I can do to help quiet the noise that has surrounded this team and surrounded myself, I don’t want that anymore."

And after calling his rookie season a "disaster" ... Johnny added, "The money sign will not be back."