Fix `fmt` for `.tfquery.hcl` files

Formatting support for these files was still gated behind an
experimental flag. This PR removes the flag and enables query file
formatting by default.

internal/command/fmt.go

@@ -32,6 +32,7 @@ var (
 		".tfvars",
 		".tftest.hcl",
 		".tfmock.hcl",
+		".tfquery.hcl",
 	}
 )
 
@@ -52,10 +53,6 @@ func (c *FmtCommand) Run(args []string) int {
 		c.input = os.Stdin
 	}
 
-	if c.Meta.AllowExperimentalFeatures {
-		fmtSupportedExts = append(fmtSupportedExts, ".tfquery.hcl")
-	}
-
 	args = c.Meta.process(args)
 	cmdFlags := c.Meta.defaultFlagSet("fmt")
 	cmdFlags.BoolVar(&c.list, "list", true, "list")

internal/command/fmt_test.go

@@ -186,9 +186,8 @@ func TestFmt_QueryFiles(t *testing.T) {
 			ui := cli.NewMockUi()
 			c := &FmtCommand{
 				Meta: Meta{
-					testingOverrides:          metaOverridesForProvider(testProvider()),
-					Ui:                        ui,
-					AllowExperimentalFeatures: true,
+					testingOverrides: metaOverridesForProvider(testProvider()),
+					Ui:               ui,
 				},
 			}
 			args := []string{gotFile}