Revert "build: roll infra_paths changes"

scripts/slave/recipes/skia/skia.expected/Housekeeper-PerCommit.json

 [
   {
     "cmd": [
       "git",
       "remote",
       "set-url",
       "origin",
       "https://skia.googlesource.com/skia.git"
     ],
-    "cwd": "[CWD]/skia",
+    "cwd": "[SLAVE_BUILD]/skia",
     "name": "git remote set-url"
   },
   {
     "cmd": [
       "git",
       "fetch"
     ],
-    "cwd": "[CWD]/skia",
+    "cwd": "[SLAVE_BUILD]/skia",
     "name": "git fetch"
   },
   {
     "cmd": [
       "git",
       "reset",
       "--hard",
       "abc123"
     ],
-    "cwd": "[CWD]/skia",
+    "cwd": "[SLAVE_BUILD]/skia",
     "name": "git reset"
   },
   {
     "cmd": [
       "git",
       "clean",
       "-d",
       "-f"
     ],
-    "cwd": "[CWD]/skia",
+    "cwd": "[SLAVE_BUILD]/skia",
     "name": "git clean"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[depot_tools]/gclient.py",
       "config",
       "--spec",
-      "cache_dir = '[ROOT]/b/build/slave/cache_dir'\nsolutions = [{'deps_file': 'DEPS', 'managed': False, 'name': 'skia', 'url': 'https://skia.googlesource.com/skia.git'}]\ntarget_os = ['llvm']"
+      "cache_dir = '[GIT_CACHE]'\nsolutions = [{'deps_file': 'DEPS', 'managed': False, 'name': 'skia', 'url': 'https://skia.googlesource.com/skia.git'}]\ntarget_os = ['llvm']"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]"
     },
     "name": "gclient setup"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[depot_tools]/gclient.py",
       "sync",
       "--nohooks",
       "--force",
       "--verbose",
       "--delete_unversioned_trees",
       "--revision",
       "skia@abc123",
       "--output-json",
       "/path/to/tmp/json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]"
     },
     "name": "gclient sync",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",
       "@@@STEP_LOG_LINE@json.output@  \"solutions\": {@@@",
       "@@@STEP_LOG_LINE@json.output@    \"skia/\": {@@@",
       "@@@STEP_LOG_LINE@json.output@      \"revision\": 164710@@@",
       "@@@STEP_LOG_LINE@json.output@    }@@@",
       "@@@STEP_LOG_LINE@json.output@  }@@@",
       "@@@STEP_LOG_LINE@json.output@}@@@",
       "@@@STEP_LOG_END@json.output@@@",
       "@@@SET_BUILD_PROPERTY@got_revision@164710@@@"
     ]
   },
   {
     "cmd": [
       "python",
       "-u",
-      "[CWD]/skia/tools/buildbot_spec.py",
+      "[SLAVE_BUILD]/skia/tools/buildbot_spec.py",
       "/path/to/tmp/json",
       "Housekeeper-PerCommit"
     ],
-    "cwd": "[CWD]/skia",
+    "cwd": "[SLAVE_BUILD]/skia",
     "name": "exec buildbot_spec.py",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",
       "@@@STEP_LOG_LINE@json.output@  \"build_targets\": [@@@",
       "@@@STEP_LOG_LINE@json.output@    \"most\"@@@",
       "@@@STEP_LOG_LINE@json.output@  ], @@@",
       "@@@STEP_LOG_LINE@json.output@  \"builder_cfg\": {@@@",
       "@@@STEP_LOG_LINE@json.output@    \"frequency\": \"PerCommit\", @@@",
       "@@@STEP_LOG_LINE@json.output@    \"is_trybot\": false, @@@",
       "@@@STEP_LOG_LINE@json.output@    \"role\": \"Housekeeper\"@@@",
@@ skipping 14 matching lines @@
       "@@@STEP_LOG_LINE@json.output@  \"upload_perf_results\": false@@@",
       "@@@STEP_LOG_LINE@json.output@}@@@",
       "@@@STEP_LOG_END@json.output@@@"
     ]
   },
   {
     "cmd": [
       "make",
       "most"
     ],
-    "cwd": "[CWD]/skia",
+    "cwd": "[SLAVE_BUILD]/skia",
     "env": {
       "BUILDTYPE": "Release",
       "CHROME_PATH": "[HOME]/src",
       "GYP_DEFINES": "skia_shared_lib=1 skia_warnings_as_errors=0",
-      "SKIA_OUT": "[CWD]/skia/out/Housekeeper-PerCommit"
+      "SKIA_OUT": "[SLAVE_BUILD]/skia/out/Housekeeper-PerCommit"
     },
     "name": "build most"
   },
   {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]