fix(ui): removed more dead code (#17318)

ui/src/onboarding/containers/LoginPage.scss

@@ -63,12 +63,6 @@
   height: 100%;
 }
 
-.sign-up--subheader {
-  padding: 24px;
-  text-align: center;
-  color: $g20-white;
-}
-
 .sign-up--page-contents {
   text-align: center;
   .cf-page-contents--padding {
@@ -82,16 +76,6 @@
   .sign-up--form-panel {
     max-width: 100%;
   }
-
-  .sign-up--full-height {
-    min-height: 100%;
-  }
-
-  .sign-up--panel {
-    height: 80vh;
-    padding: 64px;
-    max-height: 800px;
-  }
 }
 
 .sign-up--social-button-group {

ui/src/onboarding/containers/LoginPage.tsx

@@ -1,6 +1,6 @@
 // Libraries
 import React, {FC} from 'react'
-import {AppWrapper, Columns, Grid, Page} from '@influxdata/clockface'
+import {AppWrapper, Page} from '@influxdata/clockface'
 
 // Components
 import ErrorBoundary from 'src/shared/components/ErrorBoundary'
@@ -20,17 +20,6 @@ export const LoginPage: FC = () => (
           </h2>
           <h5 className="cf-funnel-page--subtitle">No credit card required</h5>
           <LoginPageContents />
-          <Grid>
-            <Grid.Row className="sign-up--full-height">
-              <Grid.Column
-                widthXS={Columns.Twelve}
-                widthMD={Columns.Five}
-                offsetMD={Columns.Four}
-                widthLG={Columns.Four}
-                className="sign-up--full-height"
-              />
-            </Grid.Row>
-          </Grid>
         </Page.Contents>
       </Page>
     </AppWrapper>