[dovecot/core] 5b0cbd: configure: Remove --with-storages parameter

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: 5b0cbd40cdf36d086f014d4f56dc994bbbe12463
      https://github.com/dovecot/core/commit/5b0cbd40cdf36d086f014d4f56dc994bbbe12463
  Author: Josef 'Jeff' Sipek <jeff.sipek at dovecot.fi>
  Date:   2017-05-09 (Tue, 09 May 2017)

  Changed paths:
    M .gitignore
    M configure.ac
    M src/lib-storage/Makefile.am
    A src/lib-storage/mail-storage-register.c
    A src/lib-storage/mailbox-list-register.c
    R src/lib-storage/register/Makefile.am
    M src/master/main.c

  Log Message:
  -----------
  configure: Remove --with-storages parameter

Just compile all the storages, since the only benefit in limiting them
is to save a tiny bit of disk space. The recently added imapc quota code
fails to link if imapc storage isn't compiled in. This is the simplest
way to fix that.