microblaze: Remove debug leftovers.

No functional changes.
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

target-microblaze/translate.c

@@ -884,7 +884,6 @@ static void dec_load(DisasContext *dc)
                 tcg_gen_sub_tl(low, tcg_const_tl(3), low);
                 tcg_gen_andi_tl(t, t, ~3);
                 tcg_gen_or_tl(t, t, low);
-                tcg_gen_mov_tl(env_debug, low);
                 tcg_gen_mov_tl(env_imm, t);
                 tcg_temp_free(low);
                 break;
@@ -1010,7 +1009,6 @@ static void dec_store(DisasContext *dc)
                 tcg_gen_sub_tl(low, tcg_const_tl(3), low);
                 tcg_gen_andi_tl(t, t, ~3);
                 tcg_gen_or_tl(t, t, low);
-                tcg_gen_mov_tl(env_debug, low);
                 tcg_gen_mov_tl(env_imm, t);
                 tcg_temp_free(low);
                 break;