fix(Rename): remove the handling of dest being src in bypassCond

[HeiHuDie]

因为香山的decoder会在rd就是rs时增加一个numRegSrc，并令该reg为rs_n+1，所以并不需要这一段逻辑就可以处理类似于fmacc的指令。

[XiangShanRobot]

[Generated by IPC robot]
commit: 63e5b86

commit	astar	copy_and_run	coremark	gcc	gromacs	lbm	linux	mcf	microbench	milc	namd	povray	wrf	xalancbmk
63e5b86	1.926	0.451	2.705	1.192	2.824	2.464	2.401	0.920	1.394	1.616	3.413	2.734	2.419	3.275

master branch:

commit	astar	copy_and_run	coremark	gcc	gromacs	lbm	linux	mcf	microbench	milc	namd	povray	wrf	xalancbmk
064c9c5	1.926	0.451	2.705	1.192	2.824	2.464	2.401	0.920	1.390	1.616	3.413	2.734	2.419	3.275
f634b23	1.926	0.451	2.705	1.192	2.824	2.464	2.401	0.920	1.394	1.616	3.413	2.734	2.419	3.275
8c0eee9	1.926	0.451	2.705	1.192	2.824	2.464	2.401	0.920	1.394	1.616	3.413	2.734	2.419	3.275
fab8b27	1.926	0.451	2.705	1.192	2.824	2.464	2.401	0.920	1.394	1.616	3.413	2.734	2.419	3.275
eb5aa89	1.926	0.451	2.705	1.192	2.824	2.464	2.401	0.920	1.394	1.616	3.413	2.734	2.419	3.275
21f3709	1.926	0.451	2.705	1.192	2.824	2.464	2.401	0.920	1.394	1.616	3.413	2.734	2.419	3.275
cbbad3d	1.926	0.451	2.705	1.192	2.824	2.464	2.401	0.920	1.394	1.616	3.413	2.734	2.419	3.275
93f531d	1.926	0.451	2.705	1.192	2.824	2.464	2.401	0.920	1.394	1.616	3.413	2.734	2.419	3.275
bfc5d9a	1.926	0.451	2.705	1.192	2.824	2.464	2.401	0.920	1.394	1.616	3.413	2.734	2.419	3.275