Remove e2fsdroid and sload_f2fs dep from fastboot

In commit 5d72d6c, an unused code path for e2fsdroid and sload_f2fs was
removed from fastboot. Remove them from the build dependency list.

Bug: 237960487
Test: m fastboot
Change-Id: Ibee72a86eeb43fcde3a032094bfc1c19de09bc03
2 files changed