target/mips: Remove unused headers in lcsr_helper.c

This files only access the address_space_ld/st API, declared
in "exec/cpu-all.h", already included by "cpu.h".

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230828221314.18435-9-philmd@linaro.org>

target/mips/tcg/sysemu/lcsr_helper.c

@@ -8,10 +8,7 @@
 
 #include "qemu/osdep.h"
 #include "cpu.h"
-#include "internal.h"
-#include "qemu/host-utils.h"
 #include "exec/helper-proto.h"
-#include "exec/exec-all.h"
 
 #define GET_MEMTXATTRS(cas) \
         ((MemTxAttrs){.requester_id = env_cpu(cas)->cpu_index})