Revert "build: roll infra_paths changes"

scripts/slave/recipes/infra/master_manager_config.expected/master_manager_config.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[depot_tools::bot_update]/resources/bot_update.py",
       "--master",
       "internal.infra",
       "--builder",
       "infradata_config",
       "--slave",
       "TestSlavename",
       "--spec",
-      "cache_dir = '[ROOT]/b/build/slave/cache_dir'\nsolutions = [{'deps_file': '.DEPS.git', 'managed': True, 'name': 'infra_internal', 'url': 'https://chrome-internal.googlesource.com/infra/infra_internal.git'}, {'deps_file': '.DEPS.git', 'managed': True, 'name': 'infra-data-master-manager', 'url': 'https://chrome-internal.googlesource.com/infradata/master-manager.git'}]",
+      "cache_dir = '[GIT_CACHE]'\nsolutions = [{'deps_file': '.DEPS.git', 'managed': True, 'name': 'infra_internal', 'url': 'https://chrome-internal.googlesource.com/infra/infra_internal.git'}, {'deps_file': '.DEPS.git', 'managed': True, 'name': 'infra-data-master-manager', 'url': 'https://chrome-internal.googlesource.com/infradata/master-manager.git'}]",
       "--root",
       "infra-data-master-manager",
       "--revision_mapping_file",
       "{\"infra-data-master-manager\": \"got_revision\", \"infra_internal\": \"got_revision\"}",
       "--git-cache-dir",
-      "[ROOT]/b/build/slave/cache_dir",
+      "[GIT_CACHE]",
       "--apply_issue_email_file",
-      "[ROOT]/b/build/site_config/.rietveld_client_email",
+      "[BUILD]/site_config/.rietveld_client_email",
       "--apply_issue_key_file",
-      "[ROOT]/b/build/site_config/.rietveld_secret_key",
+      "[BUILD]/site_config/.rietveld_secret_key",
       "--output_json",
       "/path/to/tmp/json",
       "--revision",
       "infra_internal@c14d891d44f0afff64e56ed7c9702df1d807b1ee",
       "--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@    \"infra_internal\": \"c14d891d44f0afff64e56ed7c9702df1d807b1ee\"@@@",
@@ skipping 22 matching lines @@
       "@@@SET_BUILD_PROPERTY@got_revision_cp@\"refs/heads/master@{#265993}\"@@@"
     ]
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[depot_tools]/gclient.py",
       "runhooks"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]"
     },
     "name": "gclient runhooks"
   },
   {
     "cmd": [
       "python",
       "-u",
-      "[CWD]/infra/run.py",
+      "[SLAVE_BUILD]/infra/run.py",
       "infra.services.master_manager_launcher",
       "--verify",
       "--ts-mon-endpoint=none",
       "--json-file",
-      "[CWD]/infra-data-master-manager/desired_master_state.json"
+      "[SLAVE_BUILD]/infra-data-master-manager/desired_master_state.json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "master manager configuration test"
   },
   {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]