Remove unused definitions

Author: nicolasstucki

compiler/src/dotty/tools/dotc/core/Definitions.scala

@@ -784,7 +784,6 @@ class Definitions {
   @tu lazy val TypeTestModule_identity: Symbol = TypeTestClass.companionModule.requiredMethod(nme.identity)
 
   @tu lazy val QuotedExprClass: ClassSymbol = requiredClass("scala.quoted.Expr")
-  @tu lazy val QuotedExprModule: Symbol = QuotedExprClass.companionModule
 
   @tu lazy val QuotesClass: ClassSymbol = requiredClass("scala.quoted.Quotes")
 
@@ -827,8 +826,6 @@ class Definitions {
   @tu lazy val QuotedTypeModule: Symbol = QuotedTypeClass.companionModule
     @tu lazy val QuotedTypeModule_of: Symbol = QuotedTypeModule.requiredMethod("of")
 
-  @tu lazy val TastyReflectionClass: ClassSymbol = requiredClass("scala.tasty.Reflection")
-
   @tu lazy val CanEqualClass: ClassSymbol = getClassIfDefined("scala.Eql").orElse(requiredClass("scala.CanEqual")).asClass
     def CanEqual_canEqualAny(using Context): TermSymbol =
       val methodName = if CanEqualClass.name == tpnme.Eql then nme.eqlAny else nme.canEqualAny