Revert "fail on changed init section"

This reverts commit 7b15e23149bcb9e8b4e671542485ac8d5d54ec1b.

It seems that there was no bug to start with, so apparently the commit
didn't fix anything.

Fixes #103.
Ubuntu support for kpatch-build

At this point the module does build (i.e. kpatch-build is correct);
however, the addresses in the generated vmlinux don't match that
of the running kernel so the modules fail to load with an ftrace
registration error. So that is something to be investigated.

Signed-off-by: Seth Jennings <sjenning@redhat.com>
Merge pull request #152 from jpoimboe/revert-init-fix

Revert "fail on changed init section"
Merge pull request #153 from spartacus06/ubuntu-support

Ubuntu support for kpatch-build