Fix bpkt/hook remove

cpu.c

@@ -155,9 +155,10 @@ int libafl_qemu_remove_breakpoint(uint64_t addr)
 
             *bp = (*bp)->next;
             r = 1;
-        }
+        } else {
             bp = &(*bp)->next;
         }
+    }
     return r;
 }
 
@@ -198,9 +199,10 @@ int libafl_qemu_remove_hook(uint64_t addr)
 
             *hk = (*hk)->next;
             r = 1;
-        }
+        } else {
             hk = &(*hk)->next;
         }
+    }
     return r;
 }