Fix installation path of SASL plugin
Fix installation path of SASL plugin

Including the common-installs-config.pri here has the bad side effect that the
target.path variable is reset, so the SASL plugin gets installed into the wrong
directory.
Moreover, this inclusion is not necessary, because the $PREFIX variable is
already defined when this file is included.

maemo-foss/accounts-sso-signon,plotters/accounts-sso.signond,plotters/accounts-sso.signond,maemo-foss/accounts-sso-signon,plotters/accounts-sso.signond,maemo-foss/accounts-sso-signon