linux-user/ppc: Remove POWERPC_EXCP_ALIGN handling

We will raise SIGBUS directly from cpu_loop_exit_sigbus.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

linux-user/ppc/cpu_loop.c

@@ -162,14 +162,6 @@ void cpu_loop(CPUPPCState *env)
             cpu_abort(cs, "External interrupt while in user mode. "
                       "Aborting\n");
             break;
-        case POWERPC_EXCP_ALIGN:    /* Alignment exception                   */
-            /* XXX: check this */
-            info.si_signo = TARGET_SIGBUS;
-            info.si_errno = 0;
-            info.si_code = TARGET_BUS_ADRALN;
-            info._sifields._sigfault._addr = env->nip;
-            queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
-            break;
         case POWERPC_EXCP_PROGRAM:  /* Program exception                     */
         case POWERPC_EXCP_HV_EMU:   /* HV emulation                          */
             /* XXX: check this */