Remove unused MachineLearningService Chrome flag

Bug: chromium:1000119
Change-Id: I2da457de5901a8771b249bb19c2f6edb6895e3b1
Tested: No
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1782020
Commit-Queue: Andrew Moylan <amoylan@chromium.org>
Reviewed-by: Tony Yeoman <tby@chromium.org>
Cr-Commit-Position: refs/heads/master@{#696718}

chrome/common/chrome_features.cc

@@ -793,10 +793,6 @@ const base::Feature kTPMFirmwareUpdate{"TPMFirmwareUpdate",
 const base::Feature kCrOSEnableUSMUserService{"CrOSEnableUSMUserService",
                                               base::FEATURE_ENABLED_BY_DEFAULT};
 
-// Enables or disables initialization & use of the Chrome OS ML Service.
-const base::Feature kMachineLearningService{"MachineLearningService",
-                                            base::FEATURE_DISABLED_BY_DEFAULT};
-
 // Enables or disables SmartDim on Chrome OS.
 const base::Feature kSmartDim{"SmartDim", base::FEATURE_DISABLED_BY_DEFAULT};
 

chrome/common/chrome_features.h

@@ -498,9 +498,6 @@ COMPONENT_EXPORT(CHROME_FEATURES) extern const base::Feature kTPMFirmwareUpdate;
 COMPONENT_EXPORT(CHROME_FEATURES)
 extern const base::Feature kCrOSEnableUSMUserService;
 
-COMPONENT_EXPORT(CHROME_FEATURES)
-extern const base::Feature kMachineLearningService;
-
 COMPONENT_EXPORT(CHROME_FEATURES) extern const base::Feature kSmartDim;
 
 COMPONENT_EXPORT(CHROME_FEATURES) extern const base::Feature kUsbguard;