Delete unused mask eTransactionMask parameter

Change-Id: I1f9dafb014bb3090186443ef1049b7dd53a9a697
diff --git a/services/surfaceflinger/SurfaceFlinger_hwc1.cpp b/services/surfaceflinger/SurfaceFlinger_hwc1.cpp
index 66a3c42..e3c03b2 100644
--- a/services/surfaceflinger/SurfaceFlinger_hwc1.cpp
+++ b/services/surfaceflinger/SurfaceFlinger_hwc1.cpp
@@ -1050,7 +1050,7 @@
 }
 
 bool SurfaceFlinger::handleMessageTransaction() {
-    uint32_t transactionFlags = peekTransactionFlags(eTransactionMask);
+    uint32_t transactionFlags = peekTransactionFlags();
     if (transactionFlags) {
         handleTransaction(transactionFlags);
         return true;
@@ -2223,7 +2223,7 @@
     return status_t(index);
 }
 
-uint32_t SurfaceFlinger::peekTransactionFlags(uint32_t /* flags */) {
+uint32_t SurfaceFlinger::peekTransactionFlags() {
     return android_atomic_release_load(&mTransactionFlags);
 }