Makefile.vc: flags cleanup
Makefile.vc: flags cleanup

- drop some unnecessary link flags
- use lib.exe directly for creating libraries
- factorize /nologo and use it consistently

Change-Id: Ie76119bc051e9bc53e4d6bba1a0a3f124f9062fc
(cherry picked from commit 52967498b3ef7fb8c0bdc5cb5934e46edaa069f2)

abwiz0086/webm.libwebp,appunite/libwebp,Aexyn/libwebp,Suvarna1488/webm.libwebp,matanbs/webm.libwebp,gshORTON/webm.libwebp,zofuthan/libwebp,kalli123/webm.libwebp,jacklicn/libwebp,Acidburn0zzz/webm.libwebp,yohunl/libwebp,Maria1099/webm.libwebp,yohunl/libwebp,jiehu5114/libwebp,ericmckean/webm.libwebp,matanbs/webm.libwebp,comoyo/gonzo-libwebp,zofuthan/libwebp,zofuthan/libwebp,ya7lelkom/libwebp,altogother/webm.libwebp,rxl194/libwebp,Suvarna1488/webm.libwebp,Maria1099/webm.libwebp,abwiz0086/webm.libwebp,webmproject/libwebp,appunite/libwebp,kim42083/webm.libwebp,altogother/webm.libwebp,ericmckean/webm.libwebp,rxl194/libwebp,appunite/libwebp,ya7lelkom/libwebp,comoyo/gonzo-libwebp,yohunl/libwebp,keane83/BLE_IM,Acidburn0zzz/webm.libwebp,appunite/libwebp,kleopatra999/webm.libwebp,Aexyn/libwebp,Acidburn0zzz/webm.libwebp,Aexyn/libwebp,kleopatra999/webm.libwebp,ya7lelkom/libwebp,keane83/BLE_IM,PKRoma/libwebp,Maria1099/webm.libwebp,redengineer/libwebp,iniwf/webm.libwebp,ttyangf/libwebp,Aexyn/libwebp,ttyangf/libwebp,kalli123/webm.libwebp,imazen/libwebp,redengineer/libwebp,Aexyn/libwebp,ttyangf/libwebp,comoyo/gonzo-libwebp,imazen/libwebp,kim42083/webm.libwebp,ya7lelkom/libwebp,Maria1099/webm.libwebp,kalli123/webm.libwebp,Tekserve/libwebp,jacklicn/libwebp,kleopatra999/webm.libwebp,webmproject/libwebp,iniwf/webm.libwebp,Acidburn0zzz/webm.libwebp,Tekserve/libwebp,comoyo/gonzo-libwebp,cysp/libwebp,abwiz0086/webm.libwebp,Tekserve/libwebp,jacklicn/libwebp,zofuthan/libwebp,webmproject/libwebp,altogother/webm.libwebp,redengineer/libwebp,imazen/libwebp,redengineer/libwebp,iniwf/webm.libwebp,cysp/libwebp,webmproject/libwebp,matanbs/webm.libwebp,comoyo/gonzo-libwebp,ericmckean/webm.libwebp,kim42083/webm.libwebp,kim42083/webm.libwebp,jacklicn/libwebp,gshORTON/webm.libwebp,keane83/BLE_IM,Acidburn0zzz/webm.libwebp,jiehu5114/libwebp,Suvarna1488/webm.libwebp,PKRoma/libwebp,zofuthan/libwebp,redengineer/libwebp,matanbs/webm.libwebp,cysp/libwebp,Suvarna1488/webm.libwebp,altogother/webm.libwebp,comoyo/gonzo-libwebp,ttyangf/libwebp,reimaginemedia/webm.libwebp,rxl194/libwebp,imazen/libwebp,kalli123/webm.libwebp,altogother/webm.libwebp,ericmckean/webm.libwebp,comoyo/gonzo-libwebp,jiehu5114/libwebp,PKRoma/libwebp,appunite/libwebp,reimaginemedia/webm.libwebp,yohunl/libwebp,Suvarna1488/webm.libwebp,PKRoma/libwebp,rxl194/libwebp,yohunl/libwebp,PKRoma/libwebp,keane83/BLE_IM,abwiz0086/webm.libwebp,ya7lelkom/libwebp,cysp/libwebp,Tekserve/libwebp,jacklicn/libwebp,reimaginemedia/webm.libwebp,Maria1099/webm.libwebp,jiehu5114/libwebp,ericmckean/webm.libwebp,ttyangf/libwebp,PKRoma/libwebp,kleopatra999/webm.libwebp,jiehu5114/libwebp,appunite/libwebp,abwiz0086/webm.libwebp,rxl194/libwebp,gshORTON/webm.libwebp,reimaginemedia/webm.libwebp,iniwf/webm.libwebp,kim42083/webm.libwebp,imazen/libwebp,webmproject/libwebp,kleopatra999/webm.libwebp,gshORTON/webm.libwebp,kalli123/webm.libwebp,iniwf/webm.libwebp,matanbs/webm.libwebp,gshORTON/webm.libwebp,keane83/BLE_IM,reimaginemedia/webm.libwebp