staging: rtl8192u: Remove unnecessary externs

Using 'extern' is not necessary for function prototypes.

Miscellanea:

o Reflow alignments

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/staging/rtl8192u/ieee80211/ieee80211.h
Simple merge

diff --cc drivers/staging/rtl8192u/r8190_rtl8256.h
Simple merge

diff --cc drivers/staging/rtl8192u/r8192U.h
Simple merge

diff --cc drivers/staging/rtl8192u/r8192U_dm.h
Simple merge

diff --cc drivers/staging/rtl8192u/r8192U_wx.h
Simple merge

diff --cc drivers/staging/rtl8192u/r819xU_cmdpkt.h
Simple merge

diff --cc drivers/staging/rtl8192u/r819xU_phy.h
Simple merge