Autogen: Revert adding ui files to byproducts of the timestamp target

When `ui_` include directives have different paths than `CMakeLists.txt`,
the dependency graph is not generated correctly.  This is the root cause
of #16776.  However, when #26135 was fixed by commit 5363bebc1e (Autogen:
Fix compilation of unchanged source files, 2024-07-16, v3.31.0-rc1~328^2),
it made #16776 worse: the build is always dirty.  Revert the fix for now.

Fixes: #26485
Issue: #26135
Issue: #25436

1 files changed, 3 insertions, 19 deletions

diff --git a/Source/cmQtAutoGenInitializer.cxx b/Source/cmQtAutoGenInitializer.cxx
index b75a574..c9dd154 100644
--- a/Source/cmQtAutoGenInitializer.cxx
+++ b/Source/cmQtAutoGenInitializer.cxx
@@ -1340,25 +1340,9 @@ bool cmQtAutoGenInitializer::InitAutogenTarget()
   }
 
   if (this->Uic.Enabled) {
-    auto const useAdvancedUicGraph = [this]() -> bool {
-      if (this->MultiConfig && this->GlobalGen->IsNinja()) {
-        return this->UseBetterGraph;
-      }
-      return true;
-    }();
-    if (useAdvancedUicGraph) {
-      // Make all ui_*.h files byproducts of the ${target}_autogen/timestamp
-      // custom command if the generation of depfile is enabled.
-      auto& byProducts = useDepfile ? timestampByproducts : autogenByproducts;
-      for (auto const& file : this->Uic.UiHeaders) {
-        this->AddGeneratedSource(file.first, this->Uic);
-        byProducts.push_back(file.second);
-      }
-    } else {
-      for (auto const& file : this->Uic.UiHeaders) {
-        this->AddGeneratedSource(file.first, this->Uic);
-        autogenByproducts.push_back(file.second);
-      }
+    for (auto const& file : this->Uic.UiHeaders) {
+      this->AddGeneratedSource(file.first, this->Uic);
+      autogenByproducts.push_back(file.second);
     }
   }