vwebp: remove unnecessary static Help() prototype
vwebp: remove unnecessary static Help() prototype

all uses occur after its declaration

Change-Id: I775642ce6d1dec3bc6da2fa0d5d87490992c7e6c

matanbs/webm.libwebp,matanbs/webm.libwebp,webmproject/libwebp,Suvarna1488/webm.libwebp,jacklicn/libwebp,PKRoma/libwebp,kalli123/webm.libwebp,Aexyn/libwebp,zofuthan/libwebp,ya7lelkom/libwebp,webmproject/libwebp,Suvarna1488/webm.libwebp,kalli123/webm.libwebp,Maria1099/webm.libwebp,kalli123/webm.libwebp,zofuthan/libwebp,iniwf/webm.libwebp,webmproject/libwebp,redengineer/libwebp,yohunl/libwebp,ya7lelkom/libwebp,Acidburn0zzz/webm.libwebp,imazen/libwebp,jiehu5114/libwebp,gshORTON/webm.libwebp,ya7lelkom/libwebp,imazen/libwebp,PKRoma/libwebp,rxl194/libwebp,Maria1099/webm.libwebp,ya7lelkom/libwebp,imazen/libwebp,PKRoma/libwebp,ttyangf/libwebp,abwiz0086/webm.libwebp,rxl194/libwebp,Suvarna1488/webm.libwebp,matanbs/webm.libwebp,redengineer/libwebp,iniwf/webm.libwebp,altogother/webm.libwebp,Aexyn/libwebp,PKRoma/libwebp,gshORTON/webm.libwebp,abwiz0086/webm.libwebp,matanbs/webm.libwebp,rxl194/libwebp,kim42083/webm.libwebp,zofuthan/libwebp,kleopatra999/webm.libwebp,imazen/libwebp,reimaginemedia/webm.libwebp,yohunl/libwebp,jiehu5114/libwebp,rxl194/libwebp,imazen/libwebp,reimaginemedia/webm.libwebp,Acidburn0zzz/webm.libwebp,reimaginemedia/webm.libwebp,kleopatra999/webm.libwebp,Acidburn0zzz/webm.libwebp,redengineer/libwebp,iniwf/webm.libwebp,kleopatra999/webm.libwebp,ericmckean/webm.libwebp,gshORTON/webm.libwebp,abwiz0086/webm.libwebp,ya7lelkom/libwebp,ericmckean/webm.libwebp,jacklicn/libwebp,kalli123/webm.libwebp,Aexyn/libwebp,ericmckean/webm.libwebp,ttyangf/libwebp,abwiz0086/webm.libwebp,jacklicn/libwebp,zofuthan/libwebp,reimaginemedia/webm.libwebp,ttyangf/libwebp,iniwf/webm.libwebp,altogother/webm.libwebp,yohunl/libwebp,jiehu5114/libwebp,kim42083/webm.libwebp,jacklicn/libwebp,altogother/webm.libwebp,abwiz0086/webm.libwebp,PKRoma/libwebp,iniwf/webm.libwebp,Suvarna1488/webm.libwebp,kim42083/webm.libwebp,webmproject/libwebp,rxl194/libwebp,kim42083/webm.libwebp,reimaginemedia/webm.libwebp,Suvarna1488/webm.libwebp,gshORTON/webm.libwebp,yohunl/libwebp,redengineer/libwebp,jiehu5114/libwebp,ttyangf/libwebp,Aexyn/libwebp,Aexyn/libwebp,kim42083/webm.libwebp,matanbs/webm.libwebp,redengineer/libwebp,ericmckean/webm.libwebp,gshORTON/webm.libwebp,Acidburn0zzz/webm.libwebp,altogother/webm.libwebp,ttyangf/libwebp,Maria1099/webm.libwebp,Maria1099/webm.libwebp,PKRoma/libwebp,kalli123/webm.libwebp,webmproject/libwebp,jiehu5114/libwebp,Acidburn0zzz/webm.libwebp,altogother/webm.libwebp,kleopatra999/webm.libwebp,jacklicn/libwebp,kleopatra999/webm.libwebp,zofuthan/libwebp,Maria1099/webm.libwebp,yohunl/libwebp,ericmckean/webm.libwebp