Remove searchability of CellularSecuritySettingsFragment

Test: m & manual
Bug: b/335554085
Flag: EXEMPT bug fix
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:62004763e1f131085b0e834b6c8b01b563f55b73)
Merged-In: Ia226b0848d70a307b80060049ec24b9714ee476a
Change-Id: Ia226b0848d70a307b80060049ec24b9714ee476a
1 file changed