Er... making $MAKE be precious was a bad idea. Remove it.

This commit was SVN r25926.

configure.ac

@@ -92,10 +92,6 @@ AM_INIT_AUTOMAKE([foreign dist-bzip2 subdir-objects no-define 1.11 tar-ustar])
 # (even though they're supposed to be identical).  Shrug.
 AM_SILENT_RULES([yes])
 
-# Per some discussion on the list, regard the "MAKE" variable as
-# precious.
-AC_ARG_VAR([MAKE], [The "make" command])
-
 # Make configure depend on the VERSION file, since it's used in AC_INIT
 AC_SUBST([CONFIGURE_DEPENDENCIES], ['$(top_srcdir)/VERSION'])