Remove sdel-mod kernel module support

--- ./Makefile	2003-10-30 00:07:06 +0300
+++ ./Makefile	2005-08-11 11:44:26 +0400
@@ -37,7 +37,7 @@
 clean:
 	rm -f sfill srm sswap smem sdel sdel-lib.o sdel-mod.o core *~
 
-install: all
+install:
 	mkdir -p -m 755 ${INSTALL_DIR} 2> /dev/null
 	rm -f sdel && ln -s srm sdel
 	cp -f sdel srm sfill sswap smem the_cleaner.sh ${INSTALL_DIR}