x86/crash: Remove unnecessary comparison

The ret comparison and return are unnecessary as of commit f296f26349
("x86/kexec: Remove walk_iomem_res() call with GART type")

elf_header_exclude_ranges() returns ret in any case, with or without this
comparison.

[ tglx: Use a proper commit reference instead of full SHA ]

Signed-off-by: Nikolas Nyby <nikolas@gnu.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20190724041337.8346-1-nikolas@gnu.org

arch/x86/kernel/crash.c

@@ -225,8 +225,6 @@ static int elf_header_exclude_ranges(struct crash_mem *cmem)
 	if (crashk_low_res.end) {
 		ret = crash_exclude_mem_range(cmem, crashk_low_res.start,
 							crashk_low_res.end);
-		if (ret)
-			return ret;
 	}
 
 	return ret;