[recipes] Stop pretending that buildbot_spec is a step, simplify

infra/bots/recipes/swarm_compile.expected/win_retry_failed_compile.json

Index: infra/bots/recipes/swarm_compile.expected/win_retry_failed_compile.json
diff --git a/infra/bots/recipes/swarm_compile.expected/win_retry_failed_compile.json b/infra/bots/recipes/swarm_compile.expected/win_retry_failed_compile.json
index 7f3a6021c744c6bfce443f61cfcee3d5cb6cd200..a28409449931dbfc3ce2ffc0cc32e0fbad57fade 100644
--- a/infra/bots/recipes/swarm_compile.expected/win_retry_failed_compile.json
+++ b/infra/bots/recipes/swarm_compile.expected/win_retry_failed_compile.json
@@ -32,8 +32,11 @@
     ],
     "cwd": "[CUSTOM_C:\\_B_WORK]",
     "env": {
+      "BUILDTYPE": "Debug",
       "CHROME_HEADLESS": "1",
-      "PATH": "%(PATH)s;RECIPE_PACKAGE_REPO[depot_tools]"
+      "GYP_DEFINES": "qt_sdk=C:/Qt/4.8.5/ skia_arch_type=x86 skia_warnings_as_errors=1 skia_win_debuggers_path=c:/DbgHelp skia_win_ltcg=0",
+      "PATH": "%(PATH)s;RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[CUSTOM_C:\\_B_WORK]\\skia\\out\\Build-Win-MSVC-x86-Debug"
     },
     "name": "gclient setup"
   },
@@ -54,8 +57,11 @@
     ],
     "cwd": "[CUSTOM_C:\\_B_WORK]",
     "env": {
+      "BUILDTYPE": "Debug",
       "CHROME_HEADLESS": "1",
-      "PATH": "%(PATH)s;RECIPE_PACKAGE_REPO[depot_tools];RECIPE_PACKAGE_REPO[depot_tools]"
+      "GYP_DEFINES": "qt_sdk=C:/Qt/4.8.5/ skia_arch_type=x86 skia_warnings_as_errors=1 skia_win_debuggers_path=c:/DbgHelp skia_win_ltcg=0",
+      "PATH": "%(PATH)s;RECIPE_PACKAGE_REPO[depot_tools];RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[CUSTOM_C:\\_B_WORK]\\skia\\out\\Build-Win-MSVC-x86-Debug"
     },
     "name": "gclient sync",
     "~followup_annotations": [