Clean up the source package

[Tong Sun <mlist4suntong@yahoo.com>]

Hi, 

I got an old Debian source package that is no longer exist in the repo any more, and want to pick up from there. I.e., apply all the patches then remove them for debian/patches. That's what I did, but when I tried to build it via pbuilder, I get:

make clean
dh_quilt_unpatch
Patch 03_dial.c.diff does not remove cleanly (refresh it or enforce with -f)
dh_quilt_unpatch: quilt --quiltrc /dev/null pop -a || test $? = 2 returned exit code 1
make: *** [clean] Error 25

I've remove all the patches file from debian/patches. Where else does Debian know there are patches? How do I tell it to forget them? 

Thanks