target/sparc/sysemu: Remove pointless CONFIG_USER_ONLY guard

Commit caac44a52a ("target/sparc: Make sparc_cpu_tlb_fill sysemu
only") restricted mmu_helper.c to system emulation. Checking
whether CONFIG_USER_ONLY is defined is now pointless.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221217172907.8364-9-philmd@linaro.org>

target/sparc/mmu_helper.c

@@ -924,7 +924,6 @@ hwaddr sparc_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
     return phys_addr;
 }
 
-#ifndef CONFIG_USER_ONLY
 G_NORETURN void sparc_cpu_do_unaligned_access(CPUState *cs, vaddr addr,
                                               MMUAccessType access_type,
                                               int mmu_idx,
@@ -942,4 +941,3 @@ G_NORETURN void sparc_cpu_do_unaligned_access(CPUState *cs, vaddr addr,
 
     cpu_raise_exception_ra(env, TT_UNALIGNED, retaddr);
 }
-#endif /* !CONFIG_USER_ONLY */