Remove unused originalFontSize

src/workspace.js

@@ -363,7 +363,6 @@ module.exports = class Workspace extends Model {
       })
     };
 
-    this.originalFontSize = null;
     this.openers = [];
     this.destroyedItemURIs = [];
     if (this.element) {
@@ -374,13 +373,10 @@ module.exports = class Workspace extends Model {
   }
 
   initialize() {
-    this.originalFontSize = this.config.get('editor.fontSize');
-    this.defaultFontSize = this.config.get('editor.defaultFontSize');
     this.project.onDidChangePaths(this.updateWindowTitle);
     this.subscribeToAddedItems();
     this.subscribeToMovedItems();
     this.subscribeToDockToggling();
-    this.subscribeToFontSize();
   }
 
   consumeServices({ serviceHub }) {
@@ -1748,16 +1744,12 @@ module.exports = class Workspace extends Model {
 
   // Restore to the window's default editor font size.
   resetFontSize() {
-    if (this.defaultFontSize) {
-      this.config.set('editor.fontSize', this.defaultFontSize);
-    }
+    this.config.set(
+      'editor.fontSize',
+      this.config.get('editor.defaultFontSize')
+    );
   }
 
-  subscribeToFontSize() {
-    return this.config.onDidChange('editor.defaultFontSize', () => {
-      this.defaultFontSize = this.config.get('editor.defaultFontSize');
-    });
-  }
   // Removes the item's uri from the list of potential items to reopen.
   itemOpened(item) {
     let uri;