cleanup: don't warn when skipping pinned formula.
cleanup: don't warn when skipping pinned formula.

Closes Homebrew/homebrew#46604.

Signed-off-by: Mike McQuaid <a17fed27eaa842282862ff7c1b9c8395a26ac320@mikemcquaid.com>

aw1621107/brew,konqui/brew,sjackman/homebrew,Linuxbrew/brew,claui/brew,reelsense/brew,toonetown/homebrew,mgrimes/brew,reitermarkus/brew,DomT4/brew,Linuxbrew/brew,Linuxbrew/brew,maxim-belkin/brew,Homebrew/brew,tonyg/homebrew,reitermarkus/brew,jmsundar/brew,alyssais/brew,muellermartin/dist,palxex/brew,palxex/brew,hanxue/linuxbrew,ilovezfs/brew,zmwangx/brew,DomT4/brew,vitorgalvao/brew,AnastasiaSulyagina/brew,gregory-nisbet/brew,tonyg/homebrew,nandub/brew,MikeMcQuaid/brew,vitorgalvao/brew,bfontaine/brew,JCount/brew,maxim-belkin/brew,JCount/brew,pseudocody/brew,mgrimes/brew,reitermarkus/brew,DomT4/brew,JCount/brew,vitorgalvao/brew,bfontaine/brew,konqui/brew,gordonmcshane/homebrew,gregory-nisbet/brew,EricFromCanada/brew,Homebrew/brew,MikeMcQuaid/brew,muellermartin/dist,Homebrew/brew,EricFromCanada/brew,claui/brew,staticfloat/brew,maxim-belkin/brew,claui/brew,konqui/brew,alyssais/brew,palxex/brew,rwhogg/brew,toonetown/homebrew,reelsense/brew,claui/brew,sjackman/homebrew,jmsundar/brew,tonyg/homebrew,nandub/brew,hanxue/linuxbrew,Linuxbrew/brew,DomT4/brew,zmwangx/brew,konqui/brew,gregory-nisbet/brew,AnastasiaSulyagina/brew,mahori/brew,amar-laksh/brew_sudo,aw1621107/brew,mahori/brew,jmsundar/brew,reitermarkus/brew,rwhogg/brew,muellermartin/dist,pseudocody/brew,mistydemeo/homebrew,ilovezfs/brew,staticfloat/brew,MikeMcQuaid/brew,AnastasiaSulyagina/brew,nandub/brew,toonetown/homebrew,mistydemeo/homebrew,EricFromCanada/brew,mahori/brew,JCount/brew,hanxue/linuxbrew,EricFromCanada/brew,pseudocody/brew,amar-laksh/brew_sudo,Homebrew/brew,sjackman/homebrew,mahori/brew,zmwangx/brew,MikeMcQuaid/brew,gordonmcshane/homebrew,aw1621107/brew,mgrimes/brew,rwhogg/brew,ilovezfs/brew,reelsense/brew,vitorgalvao/brew,alyssais/brew,gordonmcshane/homebrew,nandub/brew,bfontaine/brew,staticfloat/brew,amar-laksh/brew_sudo,mistydemeo/homebrew,sjackman/homebrew