Revert "build: roll infra_paths changes"

scripts/slave/recipe_modules/repo/example.expected/setup_repo.json

Index: scripts/slave/recipe_modules/repo/example.expected/setup_repo.json
diff --git a/scripts/slave/recipe_modules/repo/example.expected/setup_repo.json b/scripts/slave/recipe_modules/repo/example.expected/setup_repo.json
index 5bad7c4bfd1c47f25a0c794e4e7f070ab3e9bff0..be3f3b7ebafa066f56bac6982f22a9ac846cd71c 100644
--- a/scripts/slave/recipe_modules/repo/example.expected/setup_repo.json
+++ b/scripts/slave/recipe_modules/repo/example.expected/setup_repo.json
@@ -1,27 +1,29 @@
 [
   {
     "cmd": [
-      "[ROOT]/b/depot_tools/repo",
+      "[DEPOT_TOOLS]/repo",
       "init",
       "-u",
       "http://manifest_url"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "repo init"
   },
   {
     "cmd": [
-      "[ROOT]/b/depot_tools/repo",
+      "[DEPOT_TOOLS]/repo",
       "init",
       "-u",
       "http://manifest_url/manifest",
       "-b",
       "branch"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "repo init (2)"
   },
   {
     "cmd": [
-      "[ROOT]/b/depot_tools/repo",
+      "[DEPOT_TOOLS]/repo",
       "forall",
       "-c",
       "git",
@@ -29,11 +31,12 @@
       "--hard",
       "HEAD"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "repo forall git reset"
   },
   {
     "cmd": [
-      "[ROOT]/b/depot_tools/repo",
+      "[DEPOT_TOOLS]/repo",
       "forall",
       "-c",
       "git",
@@ -41,11 +44,12 @@
       "-f",
       "-d"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "repo forall git clean"
   },
   {
     "cmd": [
-      "[ROOT]/b/depot_tools/repo",
+      "[DEPOT_TOOLS]/repo",
       "forall",
       "-c",
       "git",
@@ -54,20 +58,23 @@
       "-d",
       "-x"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "repo forall git clean (2)"
   },
   {
     "cmd": [
-      "[ROOT]/b/depot_tools/repo",
+      "[DEPOT_TOOLS]/repo",
       "sync"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "repo sync"
   },
   {
     "cmd": [
-      "[ROOT]/b/depot_tools/repo",
+      "[DEPOT_TOOLS]/repo",
       "list"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "repo list",
     "stdout": "/path/to/tmp/",
     "~followup_annotations": [
@@ -79,6 +86,7 @@
       "echo",
       "[('src/foo', 'foo'), ('src/bar', 'bar')]"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "repo list echo"
   },
   {