i#1551 port to ARM: expand instr_remove_srcs()
i#1551 port to ARM: expand instr_remove_srcs()

Allows removal of all srcs or dsts in instr_remove_srcs() and
instr_remove_dsts().

Review-URL: https://codereview.appspot.com/201080043

bl4ckic3/dynamorio,sigma-random/dynamorio,code4bones/dynamorio,AmesianX/dynamorio,daksunt/dynamorio,daksunt/dynamorio,daksunt/dynamorio,sigma-random/dynamorio,AmesianX/dynamorio,code4bones/dynamorio,AmesianX/dynamorio,bl4ckic3/dynamorio,code4bones/dynamorio,daksunt/dynamorio,sigma-random/dynamorio,bl4ckic3/dynamorio,bl4ckic3/dynamorio,code4bones/dynamorio,AmesianX/dynamorio,sigma-random/dynamorio,bl4ckic3/dynamorio,code4bones/dynamorio,AmesianX/dynamorio,sigma-random/dynamorio,daksunt/dynamorio