Don't call certificate-related functions when not checking certificates about wreq

[ondrap]

Do you have more information about this? Like from where in particular it gets called?

[VichoReyes]

Got the following stack trace by sending SIGINT:

*** Exception (reporting due to +RTS -xc): (THUNK_STATIC), stack trace: 
  Data.X509.CertificateStore.readCertificates,
  called from Data.X509.CertificateStore.readCertificateStore.makeDirStore,
  called from Data.X509.CertificateStore.readCertificateStore,
  called from System.X509.Unix.getSystemCertificateStore,
  called from Network.Connection.initConnectionContext,
  called from Network.HTTP.Client.TLS.getTlsConnection,
  called from Network.HTTP.Client.TLS.mkManagerSettingsContext',
  called from Network.HTTP.Client.TLS.mkManagerSettingsContext,
  called from Network.HTTP.Client.TLS.mkManagerSettings,
  called from Network.HTTP.Client.TLS.tlsManagerSettings,
  called from Network.HTTP.Client.Types.managerTlsConnection,
  called from Network.HTTP.Client.Manager.mkCreateConnection,
  called from Network.HTTP.Client.Manager.newManager,
  called from Network.Wreq.Session.newSessionControl,
  called from Network.Wreq.Session.newAPISession,

But I pretty much abandoned the side project I had that had this problem, so close this if you want to.