Remove smooth scroll, already required by base theme.

yarn.lock

@@ -929,9 +929,9 @@
   integrity sha512-tHq6qdbT9U1IRSGf14CL0pUlULksvY9OZ+5eEgl1N7t+OA3tGvNpxJCzuKQlsNgCVwbAs670L1vcVQi8j9HjnA==
 
 "@types/node@*":
-  version "14.6.2"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-14.6.2.tgz#264b44c5a28dfa80198fc2f7b6d3c8a054b9491f"
-  integrity sha512-onlIwbaeqvZyniGPfdw/TEhKIh79pz66L1q06WUQqJLnAb6wbjvOtepLYTGHTqzdXgBYIE3ZdmqHDGsRsbBz7A==
+  version "14.6.3"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-14.6.3.tgz#cc4f979548ca4d8e7b90bc0180052ab99ee64224"
+  integrity sha512-pC/hkcREG6YfDfui1FBmj8e20jFU5Exjw4NYDm8kEdrW+mOh0T1Zve8DWKnS7ZIZvgncrctcNCXF4Q2I+loyww==
 
 "@types/q@^1.5.1":
   version "1.5.4"
@@ -2991,9 +2991,9 @@ [email protected]:
   integrity sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0=
 
 electron-to-chromium@^1.3.523:
-  version "1.3.556"
-  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.556.tgz#d2a8fed6b93051c5c27d182c43c7bc4d88b77afb"
-  integrity sha512-g5cGpg6rOCXxyfaLCQIWz9Fx+raFfbZ6sc4QLfvvaiCERBzY6YD6rh5d12QN++bEF1Tm9osYnxP37lbN/92j4A==
+  version "1.3.558"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.558.tgz#a329d3139cb33e8652a7e7db4c5ae26e294b9f60"
+  integrity sha512-r6th6b/TU2udqVoUDGWHF/z2ACJVnEei0wvWZf/nt+Qql1Vxh60ZYPhQP46j4D73T/Jou7hl4TqQfxben+qJTg==
 
 elliptic@^6.5.3:
   version "6.5.3"