Simplify code: not using flag MPIDI_CH3_PKT_FLAG_RMA_IMMED_RESP for GACC/FOP.
Flag MPIDI_CH3_PKT_FLAG_RMA_IMMED_RESP is used to tell the target if the response packet of current GET, GACC and FOP should use IMMED packet type. We use IMMED packet type only when origin/target/result datatypes are all basic types. Since the target does not know origin/result datatypes, origin process needs to set a flag to inform the target. However, this usage is redundant for GACC and FOP packets. The reason is that, when we use IMMED packet type for GACC/FOP packets, origin/target/result datatypes must be basic types, in such case, we must use IMMED packet type for response packets as well, and usage of MPIDI_CH3_PKT_FLAG_RMA_IMMED_RESP and related code is not necessary. In short, flag MPIDI_CH3_PKT_FLAG_RMA_IMMED_RESP is useful only for GET operation. Signed-off-by: Pavan Balaji <firstname.lastname@example.org>