[linebourse/bp/banquepopulaire] Removed liquidities from Linebourse

Added a liquidity line for Compte Titres PEA and removed it from
Portefeuille Titres PEA.
Reversed code for bp and linebourse as required.
Removed balance update to fit website balances.

Closes: 5653@zendesk, 5765@zendesk, 5162@zendesk