[Spec tests] Remove spec info from fir tests

compiler/tests-spec/testData/diagnostics/notLinked/dfa/pos/11.fir.kt

@@ -2,15 +2,6 @@
 // !DIAGNOSTICS: -UNUSED_EXPRESSION
 // SKIP_TXT
 
-/*
- * KOTLIN DIAGNOSTICS NOT LINKED SPEC TEST (POSITIVE)
- *
- * SECTIONS: dfa
- * NUMBER: 11
- * DESCRIPTION: Raw data flow analysis test
- * HELPERS: classes, functions, interfaces, properties
- */
-
 // TESTCASE NUMBER: 1
 fun <A, B : Inv<A>, C: Out<A?>> case_1(a: C, b: B) = select(a.x, b.x)