--- a/devtools/shared/system.js
+++ b/devtools/shared/system.js
@@ -260,49 +260,16 @@ function getScreenDimensions() {
   if (width.value > 2880 || height.value > 1800) {
     return 12;
   }
 
   // Other dimension such as a VM.
   return 11;
 }
 
-/**
- * Function for fetching OS CPU and returning
- * an enum for Telemetry.
- */
-function getOSCPU() {
-  if (oscpu.includes("NT 5.1") || oscpu.includes("NT 5.2")) {
-    return 0;
-  }
-  if (oscpu.includes("NT 6.0")) {
-    return 1;
-  }
-  if (oscpu.includes("NT 6.1")) {
-    return 2;
-  }
-  if (oscpu.includes("NT 6.2")) {
-    return 3;
-  }
-  if (oscpu.includes("NT 6.3")) {
-    return 4;
-  }
-  if (oscpu.includes("OS X")) {
-    return 5;
-  }
-  if (oscpu.includes("Linux")) {
-    return 6;
-  }
-  if (oscpu.includes("NT 10.")) {
-    return 7;
-  }
-  // Other OS.
-  return 12;
-}
-
 function getSetting(name) {
   let deferred = defer();
 
   if ("@mozilla.org/settingsService;1" in Cc) {
     let settingsService;
 
     // settingsService fails in b2g child processes
     // TODO bug 1205797, make this work in child processes.
@@ -321,10 +288,9 @@ function getSetting(name) {
     deferred.reject(new Error("No settings service"));
   }
   return deferred.promise;
 }
 
 exports.getSystemInfo = getSystemInfo;
 exports.getSetting = getSetting;
 exports.getScreenDimensions = getScreenDimensions;
-exports.getOSCPU = getOSCPU;
 exports.constants = AppConstants;