internal/golangorgx/tools/tokeninternal: remove

https://go.dev/cl/675736 changed the implementation and size
of go/token.FileSet, so the `const delta` array assertion
in tokeninternal started failing on go@master.

`cue lsp` doesn't actually need to load any Go code, nor cache its ASTs,
so we can safely remove this package in any case.

Signed-off-by: Daniel Martí <[email protected]>
Change-Id: Ic2d5f5e5d65630c9b55642653502eccc84184d04
Reviewed-on: https://review.gerrithub.io/c/cue-lang/cue/+/1216311
TryBot-Result: CUEcueckoo <[email protected]>
Reviewed-by: Roger Peppe <[email protected]>
Reviewed-by: Matthew Sackman <[email protected]>
Reviewed-on: https://review.gerrithub.io/c/cue-lang/cue/+/1216718

Author: mvdan

internal/golangorgx/gopls/cache/parse_cache.go

@@ -20,7 +20,6 @@ import (
 	"cuelang.org/go/internal/golangorgx/gopls/file"
 	"cuelang.org/go/internal/golangorgx/gopls/protocol"
 	"cuelang.org/go/internal/golangorgx/tools/memoize"
-	"cuelang.org/go/internal/golangorgx/tools/tokeninternal"
 	"golang.org/x/sync/errgroup"
 )
 
@@ -368,7 +367,9 @@ func (c *parseCache) parseFiles(ctx context.Context, fset *token.FileSet, mode p
 		}
 		tokenFiles = append(tokenFiles, pgf.Tok)
 	}
-	tokeninternal.AddExistingFiles(fset, tokenFiles)
+	// Disabled because the tokeninternal hacks broke with Go 1.25,
+	// and `cue lsp` doesn't need to load Go code anyway.
+	// tokeninternal.AddExistingFiles(fset, tokenFiles)
 
 	const debugIssue59080 = true
 	if debugIssue59080 {