Update QL reference

Author: felicitymay

docs/codeql/ql-language-reference/annotations.rst

@@ -433,7 +433,6 @@ The ``bindingset`` annotation takes a comma-separated list of variables.
   (for characteristic predicates and member predicates) and ``result`` (for predicates that return a result). 
   For more information, see ":ref:`predicate-binding`."
 - When you annotate a class, each variable must be ``this`` or a field in the class. 
-  Binding sets for classes are supported from release 2.3.0 of the CodeQL CLI, and release 1.26 of LGTM Enterprise.
 
 .. Links to use in substitutions
 

docs/codeql/ql-language-reference/expressions.rst

@@ -117,8 +117,6 @@ The values of the contained expressions need to be of :ref:`compatible types <ty
 Furthermore, at least one of the set elements has to be of a type that is a supertype of the types of all
 the other contained expressions.
 
-Set literals are supported from release 2.1.0 of the CodeQL CLI, and release 1.24 of LGTM Enterprise.
-
 .. index:: super
 .. _super:
 
@@ -341,8 +339,6 @@ The following aggregates are available in QL:
       where x in [-5 .. 5] and x != 0
       select unique(int y | y = x or y = x.abs() | y)
 
-  The ``unique`` aggregate is supported from release 2.1.0 of the CodeQL CLI, and release 1.24 of LGTM Enterprise.
-
 Evaluation of aggregates
 ========================
 

docs/codeql/ql-language-reference/ql-language-specification.rst

@@ -1356,9 +1356,7 @@ Set literals can be of any type, but the types within a set literal have to be c
 
 The values of a set literal expression are all the values of all the contained element expressions.
 
-Set literals are supported from release 2.1.0 of the CodeQL CLI, and release 1.24 of LGTM Enterprise.
-
-Since release 2.7.1 of the CodeQL CLI, and release 1.30 of LGTM Enterprise, a trailing comma is allowed in a set literal.
+Since release 2.7.1 of the CodeQL CLI, a trailing comma is allowed in a set literal.
 
 Disambiguation of expressions
 -----------------------------