Wrap ifql navigation with feature flag

ui/src/side_nav/containers/SideNav.tsx

@@ -139,13 +139,6 @@ class SideNav extends PureComponent<Props> {
             sourcePrefix={sourcePrefix}
           />
         ) : null}
-        <NavBlock
-          icon="cog-thick"
-          link={`${sourcePrefix}/ifql`}
-          location={location}
-        >
-          <NavHeader link={`${sourcePrefix}/ifql`} title="IFQL Builder" />
-        </NavBlock>
       </nav>
     )
   }

ui/tsconfig.json

@@ -1,6 +1,14 @@
 {
   "compilerOptions": {
-    "types": ["node", "chai", "lodash", "enzyme", "react", "prop-types", "jest"],
+    "types": [
+      "node",
+      "chai",
+      "lodash",
+      "enzyme",
+      "react",
+      "prop-types",
+      "jest"
+    ],
     "target": "es6",
     "module": "es2015",
     "moduleResolution": "node",
@@ -25,7 +33,7 @@
     "checkJs": false,
     "sourceMap": true,
     "baseUrl": "./",
-    "rootDir": "./src",
+    "rootDir": "./src"
   },
   "exclude": ["./assets/*", "./build/*", "./node_modules/*"]
 }