bus: ti-sysc: Remove unpaired sysc_clkdm_deny_idle()

Commit d098913a ("bus: ti-sysc: Fix clock handling for no-idle
quirks") fixed handling for no-idle quirk modules that are not enabled
by the bootloader.

But it also caused unpaired clockdomain calls that won't allow idling
the system. That's because clkdm_allow_idle_nolock() and
clkdm_deny_idle_nolock() have usage count with clkdm->forcewake_count.

Let's drop the unpaired sysc_clkdm_deny_idle() to fix idling of devices.

Fixes: d098913a

 ("bus: ti-sysc: Fix clock handling for no-idle quirks")
Cc: Keerthy <j-keerthy@ti.com>
Cc: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>