style: drop a code comment that is not technical debt

Co-Authored-By: Claude Opus 5.5 <[email protected]>

core/libs/prx/libSceAgcDriver/tests/execution/DepthPlanePartialStore.cpp

@@ -148,7 +148,6 @@ int main(int argc, char** argv) {
             if (!AgcDriver::GuestMemory::WriteWatched() || !AgcDriver::GuestMemory::Watched(base, PlaneBytes)) return VulkanTestSkipped;
             if (pageWatch) {
 #ifdef _WIN32
-                // Windows unwatches whole 64 KiB blocks, so leave the unit partly watched by returning only its descriptor page.
                 AgcDriver::GuestMemory::Unwatch(base + 4u * Block, Block);
                 const std::array<std::pair<std::uint64_t, std::uint64_t>, 1> descriptorPage{{{base + 4u * Block + 4096u, base + 4u * Block + 8192u}}};
                 AgcDriver::GuestMemory::Rewatch(descriptorPage);