kconfig: Delete unnecessary checks before the function call "sym_calc_value"

The sym_calc_value() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Michal Marek <mmarek@suse.com>

scripts/kconfig/confdata.c

@@ -268,7 +268,6 @@ int conf_read_simple(const char *name, int def)
 			goto load;
 		sym_add_change_count(1);
 		if (!sym_defconfig_list) {
-			if (modules_sym)
 			sym_calc_value(modules_sym);
 			return 1;
 		}
@@ -404,8 +403,6 @@ int conf_read_simple(const char *name, int def)
 	}
 	free(line);
 	fclose(in);
-
-	if (modules_sym)
 	sym_calc_value(modules_sym);
 	return 0;
 }

scripts/kconfig/symbol.c

@@ -467,7 +467,6 @@ void sym_clear_all_valid(void)
 	for_all_symbols(i, sym)
 		sym->flags &= ~SYMBOL_VALID;
 	sym_add_change_count(1);
-	if (modules_sym)
 	sym_calc_value(modules_sym);
 }