soc: qcom: pmic_glink: Drop redundant pg assignment before taking lock

Commit e9f826b ("soc: qcom: pmic_glink: simplify locking with
guard()") was on top of a fix [1] which was moving the 'pg =
__pmic_glink' assignment into the critical section.  Unfortunately the
actual fix was not applied and instead rebased version of the next patch
got in.  The resulting code is in general correct, but now there is a
duplicated assignment 'pg = __pmic_glink'.

[1] https://lore.kernel.org/all/20240822164815.230167-1-krzysztof.kozlowski@linaro.org/

Fixes: e9f826b ("soc: qcom: pmic_glink: simplify locking with guard()")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250111172326.101779-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

drivers/soc/qcom/pmic_glink.c

@@ -233,7 +233,7 @@ static void pmic_glink_pdr_callback(int state, char *svc_path, void *priv)
 
 static int pmic_glink_rpmsg_probe(struct rpmsg_device *rpdev)
 {
-	struct pmic_glink *pg = __pmic_glink;
+	struct pmic_glink *pg;
 
 	guard(mutex)(&__pmic_glink_lock);
 	pg = __pmic_glink;