Version 6.3.2: Fix build with GCC.

Telegram/SourceFiles/info/info_flexible_scroll.cpp

@@ -210,11 +210,6 @@ void FlexibleScrollHelper::setupScrollHandling() {
 }
 
 void FlexibleScrollHelper::setupScrollHandlingWithFilter() {
-	const auto heightDiff = [=] {
-		return _pinnedToTop->maximumHeight()
-			- _pinnedToTop->minimumHeight();
-	};
-
 	rpl::combine(
 		_pinnedToTop->heightValue(),
 		_inner->heightValue()
@@ -363,4 +358,4 @@ void FlexibleScrollHelper::applyScrollToPinnedLayout(int scrollCurrent) {
 		std::max(current + minimumHeight, 0));
 }
 
-} // namespace Info
+} // namespace Info