simplify logic

Author: AllanZyne

unified-runtime/source/loader/layers/sanitizer/asan/asan_shadow.cpp

@@ -153,11 +153,9 @@ ur_result_t ShadowMemoryGPU::Destroy() {
           Context, (void *)MappedPtr, PageSize));
       UR_CALL(getContext()->urDdiTable.PhysicalMem.pfnRelease(PhysicalMem));
     }
-    if (ShadowBegin != 0) {
-      UR_CALL(getContext()->urDdiTable.VirtualMem.pfnFree(
-          Context, (const void *)ShadowBegin, GetShadowSize()));
-      ShadowBegin = ShadowEnd = 0;
-    }
+    UR_CALL(getContext()->urDdiTable.VirtualMem.pfnFree(
+        Context, (const void *)ShadowBegin, GetShadowSize()));
+    ShadowBegin = ShadowEnd = 0;
   }
 
   // NOTE: Context is managed by base class, so it needn't release here

unified-runtime/source/loader/layers/sanitizer/msan/msan_shadow.cpp

@@ -253,11 +253,9 @@ ur_result_t ShadowMemoryGPU::Destroy() {
             Context, (void *)MappedPtr, PageSize));
         UR_CALL(getContext()->urDdiTable.PhysicalMem.pfnRelease(PhysicalMem));
       }
-      if (ShadowBegin != 0) {
-        UR_CALL(getContext()->urDdiTable.VirtualMem.pfnFree(
-            Context, (const void *)ShadowBegin, GetShadowSize()));
-        ShadowBegin = ShadowEnd = 0;
-      }
+      UR_CALL(getContext()->urDdiTable.VirtualMem.pfnFree(
+          Context, (const void *)ShadowBegin, GetShadowSize()));
+      ShadowBegin = ShadowEnd = 0;
     }
 
     UR_CALL(ReleaseCleanShadow());