Finally remove our EOL@EOF check.

This check was added by mistake long ago.  It will be nice to see
these EOLs disappear from our code over time.

(backport from master)

scripts/maint/checkSpace.pl

@@ -177,11 +177,5 @@ for $fn (@ARGV) {
 	    }
         }
     }
-    ## Warn if the file doesn't end with a blank line.
-    #    (End each file with a single blank line.)
-    if (! $lastnil) {
-        print "  EOL\@EOF:$fn:$.\n";
-    }
     close(F);
 }
-