Remove eSIM reset checkbox and always perform the reset.

Due to substantial risk in landing the "retain profiles" flow that
would otherwise occur if the user elected not to wipe eSIM profiles
during a factory reset, we no longer expose this option to users
through the UI. Instead, we show affected users messaging indicating
that their eSIM will be wiped unconditionally.

The underlying plumbing is retained to keep the change small and to
make it easier to revert back to a checkbox when the rest of the
platform supports it.

Change-Id: Ida7df14d81ffc4cb6b4b414928d3ce7e5c78594b
Fixes: 64081853
Test: TreeHugger