Revert "build: roll infra_paths changes"

scripts/slave/recipes/infra/build_repo_real_try.expected/ok-inner-win.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[depot_tools::bot_update]\\resources\\bot_update.py",
       "--master",
       "chromium.infra",
       "--builder",
       "build_repo_real",
       "--slave",
       "TestSlavename",
       "--spec",
-      "cache_dir = '[ROOT]\\\\b\\\\build\\\\slave\\\\cache_dir'\nsolutions = [{'deps_file': '.DEPS.git', 'managed': True, 'name': 'build', 'url': 'https://chromium.googlesource.com/chromium/tools/build.git'}]",
+      "cache_dir = '[GIT_CACHE]'\nsolutions = [{'deps_file': '.DEPS.git', 'managed': True, 'name': 'build', 'url': 'https://chromium.googlesource.com/chromium/tools/build.git'}]",
       "--root",
       "build",
       "--revision_mapping_file",
       "{\"build\": \"got_revision\"}",
       "--git-cache-dir",
-      "[ROOT]\\b\\build\\slave\\cache_dir",
+      "[GIT_CACHE]",
       "--output_json",
       "/path/to/tmp/json",
       "--revision",
       "build@HEAD",
       "--force",
       "--output_manifest"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "%(PATH)s;RECIPE_PACKAGE_REPO[depot_tools]"
     },
     "name": "bot_update",
     "~followup_annotations": [
       "@@@STEP_TEXT@Some step text@@@",
       "@@@STEP_LOG_LINE@json.output@{@@@",
       "@@@STEP_LOG_LINE@json.output@  \"did_run\": true, @@@",
       "@@@STEP_LOG_LINE@json.output@  \"fixed_revisions\": {@@@",
       "@@@STEP_LOG_LINE@json.output@    \"build\": \"HEAD\"@@@",
@@ skipping 24 matching lines @@
     ],
     "cwd": "RECIPE_PACKAGE_REPO[depot_tools]",
     "name": "ensure git tooling on windows"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[depot_tools::git]\\resources\\git_setup.py",
       "--path",
-      "[ROOT]\\b\\build\\clone",
+      "[BUILD]\\clone",
       "--url",
       "https://chromium.googlesource.com/chromium/tools/build",
       "--git_cmd_path",
       "RECIPE_PACKAGE_REPO[depot_tools]\\git.bat"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "git setup"
   },
   {
     "cmd": [
       "RECIPE_PACKAGE_REPO[depot_tools]\\git.bat",
       "retry",
       "fetch",
       "origin",
       "master"
     ],
-    "cwd": "[ROOT]\\b\\build\\clone",
+    "cwd": "[BUILD]\\clone",
     "name": "git fetch"
   },
   {
     "cmd": [
       "RECIPE_PACKAGE_REPO[depot_tools]\\git.bat",
       "checkout",
       "-f",
       "FETCH_HEAD"
     ],
-    "cwd": "[ROOT]\\b\\build\\clone",
+    "cwd": "[BUILD]\\clone",
     "name": "git checkout"
   },
   {
     "cmd": [
       "RECIPE_PACKAGE_REPO[depot_tools]\\git.bat",
       "rev-parse",
       "HEAD"
     ],
-    "cwd": "[ROOT]\\b\\build\\clone",
+    "cwd": "[BUILD]\\clone",
     "name": "read revision",
     "stdout": "/path/to/tmp/",
     "~followup_annotations": [
       "@@@STEP_TEXT@<br/>checked out 'deadbeef'<br/>@@@"
     ]
   },
   {
     "cmd": [
       "RECIPE_PACKAGE_REPO[depot_tools]\\git.bat",
       "clean",
       "-f",
       "-d",
       "-x"
     ],
-    "cwd": "[ROOT]\\b\\build\\clone",
+    "cwd": "[BUILD]\\clone",
     "name": "git clean"
   },
   {
     "cmd": [
       "RECIPE_PACKAGE_REPO[depot_tools]\\git.bat",
       "submodule",
       "sync"
     ],
-    "cwd": "[ROOT]\\b\\build\\clone",
+    "cwd": "[BUILD]\\clone",
     "name": "submodule sync"
   },
   {
     "cmd": [
       "RECIPE_PACKAGE_REPO[depot_tools]\\git.bat",
       "submodule",
       "update",
       "--init",
       "--recursive"
     ],
-    "cwd": "[ROOT]\\b\\build\\clone",
+    "cwd": "[BUILD]\\clone",
     "name": "submodule update"
   },
   {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]