Revert "ARM: dts: msm: add ovp-irq support for WLED module for MSM8937"

This reverts commit 4a487999 ("ARM: dts: msm: add ovp-irq support
for WLED module for MSM8937").
This change is added to remove the support of ovp-fault irq, as it
is a dummy irq handler in the wled driver.

CRs-fixed: 974477
Change-Id: Ia927e10661b41cec292006dd13e7efbef883c3c9
Signed-off-by: Shantanu Jain <shjain@codeaurora.org>