do not show Feedback in global nav for unauthed users (sourcegraph#47860

)

To give feedback, users on Sourcegraph.com need to sign in. (Other
instances don't support unauthenticated users, so this only pertains to
Sourcegraph.com.) This declutters the global nav.




## Test plan

Confirm that no "Feedback" global nav item shows up for unauthed users.

client/web/src/nav/GlobalNavbar.tsx

@@ -17,7 +17,7 @@ import { SettingsCascadeProps } from '@sourcegraph/shared/src/settings/settings'
 import { TelemetryProps } from '@sourcegraph/shared/src/telemetry/telemetryService'
 import { ThemeProps } from '@sourcegraph/shared/src/theme'
 import { buildGetStartedURL, buildCloudTrialURL } from '@sourcegraph/shared/src/util/url'
-import { Button, Link, ButtonLink, useWindowSize, FeedbackPrompt, PopoverTrigger } from '@sourcegraph/wildcard'
+import { Button, Link, ButtonLink, useWindowSize } from '@sourcegraph/wildcard'
 
 import { AuthenticatedUser } from '../auth'
 import { BatchChangesProps } from '../batches'
@@ -29,7 +29,7 @@ import { BrandLogo } from '../components/branding/BrandLogo'
 import { getFuzzyFinderFeatureFlags } from '../components/fuzzyFinder/FuzzyFinderFeatureFlag'
 import { WebCommandListPopoverButton } from '../components/shared'
 import { useFeatureFlag } from '../featureFlags/useFeatureFlag'
-import { useHandleSubmitFeedback, useRoutesMatch } from '../hooks'
+import { useRoutesMatch } from '../hooks'
 import { CodeInsightsProps } from '../insights/types'
 import { isCodeInsightsEnabled } from '../insights/utils/is-code-insights-enabled'
 import { NotebookProps } from '../notebooks'
@@ -146,9 +146,6 @@ export const GlobalNavbar: React.FunctionComponent<React.PropsWithChildren<Globa
  const location = useLocation()
 
  const routeMatch = useRoutesMatch(props.routes)
- const { handleSubmitFeedback } = useHandleSubmitFeedback({
- routeMatch,
- })
 
  const onNavbarQueryChange = useNavbarQueryState(state => state.setQueryState)
  // Search context management is still enabled on .com
@@ -275,25 +272,6 @@ export const GlobalNavbar: React.FunctionComponent<React.PropsWithChildren<Globa
  </Link>
  </NavAction>
  )}
-
- <NavAction className="d-sm-flex d-none">
- <FeedbackPrompt
- onSubmit={handleSubmitFeedback}
- productResearchEnabled={true}
- authenticatedUser={props.authenticatedUser}
- >
- <PopoverTrigger
- as={Button}
- aria-label="Feedback"
- variant="secondary"
- outline={true}
- size="sm"
- className={styles.feedbackTrigger}
- >
- <span>Feedback</span>
- </PopoverTrigger>
- </FeedbackPrompt>
- </NavAction>
  </>
  )}
  {props.authenticatedUser && isSourcegraphDotCom && (