plscheme - plscheme: Remove redundant proc_t members and fix a minor

Log Message:
-----------
Remove redundant proc_t members and fix a minor duplicated variable definition
problem.

Modified Files:
--------------
plscheme:
plscheme.c (r1.15 -> r1.16)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/plscheme/plscheme/plscheme.c.diff?r1=1.15&r2=1.16)