Revert of Use the crrev recipe module to fetch commit hashes.

scripts/slave/recipes/bisect.expected/basic.json

Index: scripts/slave/recipes/bisect.expected/basic.json
diff --git a/scripts/slave/recipes/bisect.expected/basic.json b/scripts/slave/recipes/bisect.expected/basic.json
index 5e555df6e33d454c45778a6211092d790f52d0e2..c8f2ca53e340ce4d005b84fe5e11083bc803ef01 100644
--- a/scripts/slave/recipes/bisect.expected/basic.json
+++ b/scripts/slave/recipes/bisect.expected/basic.json
@@ -210,46 +210,36 @@
   },
   {
     "cmd": [
-      "python",
-      "-u",
-      "RECIPE_MODULE[build::crrev]/resources/crrev_client.py",
-      "get_numbering",
-      "--params-file",
-      "{\"number\": 306478, \"numbering_identifier\": \"refs/heads/master\", \"numbering_type\": \"COMMIT_POSITION\", \"project\": \"chromium\", \"repo\": \"chromium/src\"}",
-      "--attempts",
-      "3"
-    ],
-    "cwd": "[SLAVE_BUILD]",
-    "name": "Resolving reference range.crrev get commit hash for refs/heads/master@{#306478}",
-    "stdout": "/path/to/tmp/json",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LOG_LINE@json.output@{@@@",
-      "@@@STEP_LOG_LINE@json.output@  \"git_sha\": \"a6298e4afedbf2cd461755ea6f45b0ad64222222\"@@@",
-      "@@@STEP_LOG_LINE@json.output@}@@@",
-      "@@@STEP_LOG_END@json.output@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "RECIPE_MODULE[build::crrev]/resources/crrev_client.py",
-      "get_numbering",
-      "--params-file",
-      "{\"number\": 306475, \"numbering_identifier\": \"refs/heads/master\", \"numbering_type\": \"COMMIT_POSITION\", \"project\": \"chromium\", \"repo\": \"chromium/src\"}",
-      "--attempts",
-      "3"
-    ],
-    "cwd": "[SLAVE_BUILD]",
-    "name": "Resolving reference range.crrev get commit hash for refs/heads/master@{#306475}",
-    "stdout": "/path/to/tmp/json",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LOG_LINE@json.output@{@@@",
-      "@@@STEP_LOG_LINE@json.output@  \"git_sha\": \"e28dc0d49c331def2a3bbf3ddd0096eb51551155\"@@@",
-      "@@@STEP_LOG_LINE@json.output@}@@@",
-      "@@@STEP_LOG_END@json.output@@@"
+      "git",
+      "log",
+      "--format=hash:%H",
+      "--grep",
+      "^Cr-Commit-Position: refs/heads/master@{#306478}",
+      "-1",
+      "origin/master"
+    ],
+    "cwd": "[SLAVE_BUILD]/src",
+    "name": "Resolving reference range.resolving commit_pos 306478",
+    "stdout": "/path/to/tmp/",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "git",
+      "log",
+      "--format=hash:%H",
+      "--grep",
+      "^Cr-Commit-Position: refs/heads/master@{#306475}",
+      "-1",
+      "origin/master"
+    ],
+    "cwd": "[SLAVE_BUILD]/src",
+    "name": "Resolving reference range.resolving commit_pos 306475",
+    "stdout": "/path/to/tmp/",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@"
     ]
   },
   {