Revert "Generate descriptor for trait constructor. Exception is thrown otherwise (EA-38416)"

This reverts commit 6ba120bba8.

compiler/testData/psi/TraitConstructor.kt

@@ -1,2 +0,0 @@
-trait TestTrait(val a: Int, var b: String, c: Double)
-trait TestTrait()

compiler/testData/psi/TraitConstructor.txt

@@ -1,50 +0,0 @@
-JetFile: TraitConstructor.kt
-  PACKAGE_DIRECTIVE
-    <empty list>
-  CLASS
-    PsiElement(trait)('trait')
-    PsiWhiteSpace(' ')
-    PsiElement(IDENTIFIER)('TestTrait')
-    VALUE_PARAMETER_LIST
-      PsiElement(LPAR)('(')
-      VALUE_PARAMETER
-        PsiElement(val)('val')
-        PsiWhiteSpace(' ')
-        PsiElement(IDENTIFIER)('a')
-        PsiElement(COLON)(':')
-        PsiWhiteSpace(' ')
-        TYPE_REFERENCE
-          USER_TYPE
-            REFERENCE_EXPRESSION
-              PsiElement(IDENTIFIER)('Int')
-      PsiElement(COMMA)(',')
-      PsiWhiteSpace(' ')
-      VALUE_PARAMETER
-        PsiElement(var)('var')
-        PsiWhiteSpace(' ')
-        PsiElement(IDENTIFIER)('b')
-        PsiElement(COLON)(':')
-        PsiWhiteSpace(' ')
-        TYPE_REFERENCE
-          USER_TYPE
-            REFERENCE_EXPRESSION
-              PsiElement(IDENTIFIER)('String')
-      PsiElement(COMMA)(',')
-      PsiWhiteSpace(' ')
-      VALUE_PARAMETER
-        PsiElement(IDENTIFIER)('c')
-        PsiElement(COLON)(':')
-        PsiWhiteSpace(' ')
-        TYPE_REFERENCE
-          USER_TYPE
-            REFERENCE_EXPRESSION
-              PsiElement(IDENTIFIER)('Double')
-      PsiElement(RPAR)(')')
-  PsiWhiteSpace('\n')
-  CLASS
-    PsiElement(trait)('trait')
-    PsiWhiteSpace(' ')
-    PsiElement(IDENTIFIER)('TestTrait')
-    VALUE_PARAMETER_LIST
-      PsiElement(LPAR)('(')
-      PsiElement(RPAR)(')')