blas-lapack.ss fails - remove function unknown

[damg]

plt-linalg 1.7 fails to load on PLT 4.1 (gentoo)

blas-lapack.ss fails with function remove being unknown.

Reproducible: always
Workaround:

• either change (require (lib "list.ss" "srfi" "1")) to (require (lib "1.ss" "srfi"))
• or replace the remove call in line 83 by s:remove

[wmfarr]

This problem has now been resolved by plt-linalg version (1 8).