s390x: remove compatibility cc field

Remove the now unused cc field that was only required to not break
bisectability.
Signed-off-by: NAlexander Graf <agraf@suse.de>

target-s390x/cpu.h

@@ -67,7 +67,6 @@ typedef struct CPUS390XState {
 
     PSW psw;
 
-    uint32_t cc;
     uint32_t cc_op;
     uint64_t cc_src;
     uint64_t cc_dst;