De-rename the page

Author: Sporarum

docs/_docs/reference/dropped-features/type-projection.md

@@ -1,7 +1,7 @@
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 layout: doc-page
-title: "Tightened Type Projection"
-nightlyOf: https://docs.scala-lang.org/scala3/reference/changed-features/type-projection.html
+title: "Dropped: General Type Projection"
+nightlyOf: https://docs.scala-lang.org/scala3/reference/dropped-features/type-projection.html
 ---
 
 Scala 2 allowed general type projection `T#A` where `T` is an arbitrary type and `A` names a type member of `T`.