Remove constant variable channel_plan to increase readability of the code.

Tested with rtl8192e (WLL6130-D99) in Mode n (12.5 MB/s)
Transferred this patch over wlan connection of rtl8192e.
Tested on Channels: 1, 2, 10, 13

Philipp Hortmann (10):
  staging: rtl8192e: Remove unused return value of rtl92e_set_channel()
  staging: rtl8192e: Change parameter "ch" of set_chan() to u8
  staging: rtl8192e: Unwind pointer to pointer to rtl92e_set_channel()
  staging: rtl8192e: Remove equation that results in constant for
    chnl_plan
  staging: rtl8192e: Remove constant variable chnl_plan
  staging: rtl8192e: Remove unused variable eeprom_chnl_plan
  staging: rtl8192e: Remove equation to check limits of channel
  staging: rtl8192e: Remove check if channel_array[channel_plan].len !=
    0
  staging: rtl8192e: Remove switch for a constant in
    dot11d_channel_map()
  staging: rtl8192e: Remove constant index from channel_array[]

 drivers/staging/rtl8192e/dot11d.c             | 63 +++----------------
 drivers/staging/rtl8192e/dot11d.h             |  2 +-
 .../staging/rtl8192e/rtl8192e/r8192E_dev.c    | 12 ----
 .../staging/rtl8192e/rtl8192e/r8192E_phy.c    | 12 ++--
 .../staging/rtl8192e/rtl8192e/r8192E_phy.h    |  2 +-
 drivers/staging/rtl8192e/rtl8192e/rtl_core.c  | 20 +-----
 drivers/staging/rtl8192e/rtl8192e/rtl_core.h  |  4 --
 drivers/staging/rtl8192e/rtllib.h             |  2 +-
 8 files changed, 21 insertions(+), 96 deletions(-)

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2.42.0