diff --git a/tools/release/auto_roll.py b/tools/release/auto_roll.py
index cb72022310..12a88bd468 100755
--- a/tools/release/auto_roll.py
+++ b/tools/release/auto_roll.py
@@ -30,7 +30,6 @@ class Preparation(Step):
   MESSAGE = "Preparation."
 
   def RunStep(self):
-    self['json_output']['monitoring_state'] = 'preparation'
     # Update v8 remote tracking branches.
     self.GitFetchOrigin()
     self.Git("fetch origin +refs/tags/*:refs/tags/*")
@@ -40,7 +39,6 @@ class DetectLastRoll(Step):
   MESSAGE = "Detect commit ID of the last Chromium roll."
 
   def RunStep(self):
-    self['json_output']['monitoring_state'] = 'detect_last_roll'
     self["last_roll"] = self._options.last_roll
     if not self["last_roll"]:
       # Get last-rolled v8 revision from Chromium's DEPS file.
@@ -55,7 +53,6 @@ class DetectRevisionToRoll(Step):
   MESSAGE = "Detect commit ID of the V8 revision to roll."
 
   def RunStep(self):
-    self['json_output']['monitoring_state'] = 'detect_revision'
     self["roll"] = self._options.revision
     if self["roll"]:
       # If the revision was passed on the cmd line, continue script execution
@@ -83,7 +80,6 @@ class DetectRevisionToRoll(Step):
     else:
       print("There is no newer v8 revision than the one in Chromium (%s)."
             % self["last_roll"])
-      self['json_output']['monitoring_state'] = 'up_to_date'
       return True
 
 
@@ -91,7 +87,6 @@ class PrepareRollCandidate(Step):
   MESSAGE = "Robustness checks of the roll candidate."
 
   def RunStep(self):
-    self['json_output']['monitoring_state'] = 'prepare_candidate'
     self["roll_title"] = self.GitLog(n=1, format="%s",
                                      git_hash=self["roll"])
 
@@ -106,7 +101,6 @@ class SwitchChromium(Step):
   MESSAGE = "Switch to Chromium checkout."
 
   def RunStep(self):
-    self['json_output']['monitoring_state'] = 'switch_chromium'
     cwd = self._options.chromium
     self.InitialEnvironmentChecks(cwd)
     # Check for a clean workdir.
@@ -121,7 +115,6 @@ class UpdateChromiumCheckout(Step):
   MESSAGE = "Update the checkout and create a new branch."
 
   def RunStep(self):
-    self['json_output']['monitoring_state'] = 'update_chromium'
     cwd = self._options.chromium
     self.GitCheckout("main", cwd=cwd)
     self.DeleteBranch("work-branch", cwd=cwd)
@@ -137,7 +130,6 @@ class UploadCL(Step):
   MESSAGE = "Create and upload CL."
 
   def RunStep(self):
-    self['json_output']['monitoring_state'] = 'upload'
     cwd = self._options.chromium
     # Patch DEPS file.
     if self.Command("gclient", "setdep -r src/v8@%s" %
@@ -172,7 +164,6 @@ class CleanUp(Step):
   MESSAGE = "Done!"
 
   def RunStep(self):
-    self['json_output']['monitoring_state'] = 'success'
     print("Congratulations, you have successfully rolled %s into "
           "Chromium."
           % self["roll"])
diff --git a/tools/release/test_scripts.py b/tools/release/test_scripts.py
index 4aeada90dc..ca58c8badd 100755
--- a/tools/release/test_scripts.py
+++ b/tools/release/test_scripts.py
@@ -579,8 +579,6 @@ deps = {
           "-c", TEST_CONFIG["CHROMIUM"],
           "--json-output", json_output_file])
     self.assertEquals(0, result)
-    json_output = json.loads(FileToText(json_output_file))
-    self.assertEquals("up_to_date", json_output["monitoring_state"])
 
 
   def testChromiumRoll(self):
@@ -638,9 +636,6 @@ deps = {
     deps = FileToText(os.path.join(chrome_dir, "DEPS"))
     self.assertTrue(re.search("\"v8_revision\": \"22624\"", deps))
 
-    json_output = json.loads(FileToText(json_output_file))
-    self.assertEquals("success", json_output["monitoring_state"])
-
   def testCheckLastPushRecently(self):
     self.Expect([
       Cmd("git fetch origin +refs/tags/*:refs/tags/*", ""),