(no bug) - remove useless PG storage class from docs
(no bug) - remove useless PG storage class from docs

Serg09/socorro,linearregression/socorro,luser/socorro,cliqz/socorro,AdrianGaudebert/socorro,Tchanders/socorro,yglazko/socorro,pcabido/socorro,pcabido/socorro,cliqz/socorro,spthaolt/socorro,linearregression/socorro,twobraids/socorro,spthaolt/socorro,KaiRo-at/socorro,lonnen/socorro,twobraids/socorro,m8ttyB/socorro,adngdb/socorro,luser/socorro,spthaolt/socorro,mozilla/socorro,linearregression/socorro,luser/socorro,yglazko/socorro,cliqz/socorro,rhelmer/socorro,mozilla/socorro,Tchanders/socorro,lonnen/socorro,adngdb/socorro,AdrianGaudebert/socorro,lonnen/socorro,adngdb/socorro,spthaolt/socorro,yglazko/socorro,Tayamarn/socorro,KaiRo-at/socorro,mozilla/socorro,Tayamarn/socorro,Tayamarn/socorro,Tayamarn/socorro,Tchanders/socorro,Tchanders/socorro,twobraids/socorro,linearregression/socorro,m8ttyB/socorro,KaiRo-at/socorro,cliqz/socorro,pcabido/socorro,luser/socorro,twobraids/socorro,rhelmer/socorro,mozilla/socorro,adngdb/socorro,adngdb/socorro,lonnen/socorro,linearregression/socorro,AdrianGaudebert/socorro,m8ttyB/socorro,spthaolt/socorro,rhelmer/socorro,AdrianGaudebert/socorro,KaiRo-at/socorro,Serg09/socorro,pcabido/socorro,KaiRo-at/socorro,Tayamarn/socorro,Tchanders/socorro,m8ttyB/socorro,mozilla/socorro,rhelmer/socorro,cliqz/socorro,mozilla/socorro,pcabido/socorro,twobraids/socorro,pcabido/socorro,Serg09/socorro,linearregression/socorro,Serg09/socorro,AdrianGaudebert/socorro,Serg09/socorro,m8ttyB/socorro,rhelmer/socorro,twobraids/socorro,yglazko/socorro,m8ttyB/socorro,luser/socorro,spthaolt/socorro,KaiRo-at/socorro,Tchanders/socorro,adngdb/socorro,AdrianGaudebert/socorro,Tayamarn/socorro,rhelmer/socorro,Serg09/socorro,yglazko/socorro,yglazko/socorro,luser/socorro,cliqz/socorro