Staging: rtl8192e: rtl8192e: Remove unnecessory braces and space

This patch removes following checkpatch.pl warnings in rtl_core.c file:

WARNING: Braces {} are not necessary for single statement blocks
WARNING: Space prohibited before semicolon

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>