rtlwifi: Removed unused define and code efuse_re_pg* from wifi.h

The following:
 bool efuse_re_pg_sec1flag;
 u8 efuse_re_pg_data[8];
are not referenced anywhere in the rtlwifi code.

This patch is originally created by Rick Veens <rickveens92@gmail.com>,
and Joe Perches <joe@perches.com> reminded to apply it to rtlwifi.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/realtek/rtlwifi/wifi.h

@@ -1905,10 +1905,6 @@ struct rtl_efuse {
 	u8 efuse_map[2][EFUSE_MAX_LOGICAL_SIZE];
 	u16 efuse_usedbytes;
 	u8 efuse_usedpercentage;
-#ifdef EFUSE_REPG_WORKAROUND
-	bool efuse_re_pg_sec1flag;
-	u8 efuse_re_pg_data[8];
-#endif
 
 	u8 autoload_failflag;
 	u8 autoload_status;