Bug 1882778 - Remove redundant experiment string juno_onboarding_privacy_notice_text_2 (#5935)

Co-authored-by: t-p-white <towhite@mozilla.com>
Co-authored-by: t-p-white <1833156+t-p-white@users.noreply.github.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

app/src/main/res/values/strings.xml

@@ -315,7 +315,7 @@
     <!-- Description for learning more about our privacy notice. -->
     <string name="juno_onboarding_privacy_notice_text">Firefox privacy notice</string>
     <!-- Description for learning more about our privacy notice. -->
-    <string name="juno_onboarding_privacy_notice_text_2" tools:ignore="UnusedResources">Learn more in our privacy notice</string>
+    <string name="juno_onboarding_privacy_notice_text_2" moz:removedIn="125" tools:ignore="UnusedResources">Learn more in our privacy notice</string>
     <!-- Title for set firefox as default browser screen used by Nimbus experiments. -->
     <string name="juno_onboarding_default_browser_title_nimbus_2">We love keeping you safe</string>
     <!-- Title for set firefox as default browser screen used by Nimbus experiments.