Reverted Ground Drift changes on c699304bd95b5c3bf9dddcca1dd2fe842169c650

Signed-off-by: Cydh Ramdh <cydh@pservero.com>

db/re/skill_unit_db.txt

@@ -97,7 +97,7 @@
 484,0xb8,    ,  2, 0, 500,enemy, 0x8808	//HW_GRAVITATION
 488,0xb9,    ,  3, 0,  -1,all,   0x200	//CG_HERMODE
 516,0x86,    ,  3, 0, 100,enemy, 0x000	//GS_DESPERADO
-521,0xbe,    ,  0, 1,1000,enemy, 0x006	//GS_GROUNDDRIFT
+521,0xbe,    ,  0, 1,1000,enemy, 0x000	//GS_GROUNDDRIFT
 525,0x86,    ,  0, 2,1000,enemy, 0x018	//NJ_HUUMA
 527,0xbc,    , -1, 0,2000,enemy, 0x018	//NJ_TATAMIGAESHI
 535,0xbd,    , -1, 0,  20,enemy, 0x8010	//NJ_KAENSIN