refactor(restoreOverriddenRequests): Eliminate uncovered line

lib/common.js

@@ -55,7 +55,7 @@ const isUtf8Representable = function(buffer) {
 }
 
 //  Array where all information about all the overridden requests are held.
-let requestOverride = []
+let requestOverrides = {}
 
 /**
  * Overrides the current `request` function of `http` and `https` modules with
@@ -81,14 +81,14 @@ const overrideRequests = function(newRequest) {
     const overriddenRequest = module.request
     const overriddenGet = module.get
 
-    if (requestOverride[moduleName]) {
+    if (requestOverrides[moduleName]) {
       throw new Error(
         `Module's request already overridden for ${moduleName} protocol.`
       )
     }
 
     //  Store the properties of the overridden request so that it can be restored later on.
-    requestOverride[moduleName] = {
+    requestOverrides[moduleName] = {
       module,
       request: overriddenRequest,
       get: overriddenGet,
@@ -125,23 +125,15 @@ const overrideRequests = function(newRequest) {
  */
 const restoreOverriddenRequests = function() {
   debug('restoring requests')
-
-  //  Restore any overridden requests.
-  _(requestOverride)
-    .keys()
-    .each(function(proto) {
+  Object.entries(requestOverrides).forEach(
+    ([proto, { module, request, get }]) => {
       debug('- restoring request for', proto)
-
-      const override = requestOverride[proto]
-      // TODO-coverage: `override` is always truthy. Refactor to eliminate the
-      // uncovered line.
-      if (override) {
-        override.module.request = override.request
-        override.module.get = override.get
-        debug('- restored request for', proto)
-      }
-    })
-  requestOverride = []
+      module.request = request
+      module.get = get
+      debug('- restored request for', proto)
+    }
+  )
+  requestOverrides = {}
 }
 
 /**