V8: Move gn-peek step behind mb step

scripts/slave/recipes/v8.expected/full_client_v8_ports_V8_Linux___x87___nosnap___debug.json

Index: scripts/slave/recipes/v8.expected/full_client_v8_ports_V8_Linux___x87___nosnap___debug.json
diff --git a/scripts/slave/recipes/v8.expected/full_client_v8_ports_V8_Linux___x87___nosnap___debug.json b/scripts/slave/recipes/v8.expected/full_client_v8_ports_V8_Linux___x87___nosnap___debug.json
index 44db3776bb0351e72c9af9dedf17c1695000fc73..0a0045d70966effbc3c50a3c2179bc813d49d78d 100644
--- a/scripts/slave/recipes/v8.expected/full_client_v8_ports_V8_Linux___x87___nosnap___debug.json
+++ b/scripts/slave/recipes/v8.expected/full_client_v8_ports_V8_Linux___x87___nosnap___debug.json
@@ -130,45 +130,6 @@
     "cmd": [
       "python",
       "-u",
-      "[DEPOT_TOOLS]/gn.py",
-      "--root=[SLAVE_BUILD]/v8",
-      "gen",
-      "[TMP_BASE]/v8_gn_tmp_1",
-      "--args=is_debug=true target_cpu=\"x86\" use_goma=true goma_dir=\"[CACHE]/cipd/goma\""
-    ],
-    "name": "gn"
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "[SLAVE_BUILD]/v8/tools/gyp_flag_compare.py",
-      "[TMP_BASE]/v8_gn_tmp_1",
-      "[SLAVE_BUILD]/v8/out/Debug",
-      "all",
-      "all"
-    ],
-    "name": "compare build flags (fyi)"
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "\nimport shutil, sys\nshutil.rmtree(sys.argv[1])\n",
-      "[TMP_BASE]/v8_gn_tmp_1"
-    ],
-    "name": "rmtree [TMP_BASE]/v8_gn_tmp_1",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@python.inline@@@@",
-      "@@@STEP_LOG_LINE@python.inline@import shutil, sys@@@",
-      "@@@STEP_LOG_LINE@python.inline@shutil.rmtree(sys.argv[1])@@@",
-      "@@@STEP_LOG_END@python.inline@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
       "RECIPE_PACKAGE_REPO[build]/scripts/tools/runit.py",
       "--show-path",
       "python",