Remove an equals sign from ConstArg (this probably pertains only to ConstParam)

(As per matklad)

Author: Veetaha

crates/ra_syntax/src/ast/generated/nodes.rs

@@ -2479,7 +2479,6 @@ pub struct ConstArg {
 }
 impl ConstArg {
     pub fn literal(&self) -> Option<Literal> { support::child(&self.syntax) }
-    pub fn eq_token(&self) -> Option<SyntaxToken> { support::token(&self.syntax, T![=]) }
     pub fn block_expr(&self) -> Option<BlockExpr> { support::child(&self.syntax) }
 }
 /// FIXME: (@edwin0cheng) Remove it to use ItemList instead

xtask/src/ast_src.rs

@@ -1996,8 +1996,6 @@ pub(crate) const AST_SRC: AstSrc = AstSrc {
         /// [Reference](https://doc.rust-lang.org/reference/paths.html#paths-in-expressions)
         struct LifetimeArg { T![lifetime] }
 
-
-        // TODO: What does equal sign do here?
         /// Constant value argument that is passed at generic instantiation site.
         ///
         /// ```
@@ -2007,7 +2005,7 @@ pub(crate) const AST_SRC: AstSrc = AstSrc {
         /// ```
         ///
         /// [RFC](https://github.com/rust-lang/rfcs/blob/master/text/2000-const-generics.md#declaring-a-const-parameter)
-        struct ConstArg { Literal, T![=], BlockExpr }
+        struct ConstArg { Literal, BlockExpr }
 
 
         /// FIXME: (@edwin0cheng) Remove it to use ItemList instead