The `initDriver` function had an issue where a new `result` variable was defined
in a lower scope, causing the initialization result to be discarded. This commit
removes the redundant variable declaration, ensuring that the `result` variable
initialized in the upper scope is correctly set by the
`Driver::get()->initialize` method and properly reflects the driver
initialization status.
Related-To: NEO-13686
Signed-off-by: Jack Myers <jack.myers@intel.com>