freedreno/ir3: remove a couple redundant is_flow()s

Now that the opc's encode the instruction category (making them unique)
we no longer need to check the category in addition to the opc.
Signed-off-by: Rob Clark <robclark@freedesktop.org>

src/gallium/drivers/freedreno/ir3/ir3_depth.c

@@ -137,7 +137,7 @@ remove_unused_by_block(struct ir3_block *block)
 {
 	list_for_each_entry_safe (struct ir3_instruction, instr, &block->instr_list, node) {
 		if (!ir3_instr_check_mark(instr)) {
-			if (is_flow(instr) && (instr->opc == OPC_END))
+			if (instr->opc == OPC_END)
 				continue;
 			/* mark it, in case it is input, so we can
 			 * remove unused inputs:

src/gallium/drivers/freedreno/ir3/ir3_legalize.c

@@ -292,7 +292,7 @@ resolve_dest_block(struct ir3_block *block)
 		} else if (list_length(&block->instr_list) == 1) {
 			struct ir3_instruction *instr = list_first_entry(
 					&block->instr_list, struct ir3_instruction, node);
-			if (is_flow(instr) && (instr->opc == OPC_JUMP))
+			if (instr->opc == OPC_JUMP)
 				return block->successors[0];
 		}
 	}