riscv: Cleanup setup_bootmem()

After the following patches,

  commit de043da0b9 ("RISC-V: Fix usage of memblock_enforce_memory_limit")
  commit 1bd14a66ee ("RISC-V: Remove any memblock representing unusable memory area")
  commit b10d6bca87 ("arch, drivers: replace for_each_membock() with for_each_mem_range()")

some logic is useless, kill the mem_start/start/end and unneeded code.

Reviewed-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
This commit is contained in:
Kefeng Wang 2021-02-09 09:01:51 +08:00 • committed by Palmer Dabbelt
commit dd2d082b57
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