feat(plat/sgi): remove RAS setup call from common code

In preparation of refactoring the support for platform error handling,
remove the call to RAS platform setup call from SGI specific common
code. This function will be called from platform code after the
refactoring.

Signed-off-by: Omkar Anand Kulkarni <omkar.kulkarni@arm.com>
Change-Id: If4a87e0adf166b1c99bf5999f2f89efa6c7c6afc
1 file changed