all: replace golang.org/x/exp/slices with the standard library package

Signed-off-by: Elias Naur <mail@eliasnaur.com>

text/family_parser_test.go

@@ -1,9 +1,8 @@
 package text
 
 import (
+	"slices"
 	"testing"
-
-	"golang.org/x/exp/slices"
 )
 
 func TestParser(t *testing.T) {

text/gotext.go

@@ -9,6 +9,7 @@ import (
 	"io"
 	"log"
 	"os"
+	"slices"
 
 	"github.com/go-text/typesetting/di"
 	"github.com/go-text/typesetting/font"
@@ -16,7 +17,6 @@ import (
 	"github.com/go-text/typesetting/fontscan"
 	"github.com/go-text/typesetting/language"
 	"github.com/go-text/typesetting/shaping"
-	"golang.org/x/exp/slices"
 	"golang.org/x/image/math/fixed"
 	"golang.org/x/text/unicode/bidi"
 

text/gotext_test.go

@@ -3,13 +3,13 @@ package text
 import (
 	"fmt"
 	"math"
+	"slices"
 	"strconv"
 	"testing"
 
 	nsareg "eliasnaur.com/font/noto/sans/arabic/regular"
 	"github.com/go-text/typesetting/font"
 	"github.com/go-text/typesetting/shaping"
-	"golang.org/x/exp/slices"
 	"golang.org/x/image/font/gofont/goregular"
 	"golang.org/x/image/math/fixed"
 

text/shaper_test.go

@@ -2,6 +2,7 @@ package text
 
 import (
 	"fmt"
+	"slices"
 	"strings"
 	"testing"
 
@@ -10,7 +11,6 @@ import (
 	"gioui.org/font/gofont"
 	"gioui.org/font/opentype"
 	"gioui.org/io/system"
-	"golang.org/x/exp/slices"
 	"golang.org/x/image/font/gofont/goregular"
 	"golang.org/x/image/math/fixed"
 )

widget/text.go

@@ -5,6 +5,7 @@ import (
 	"image"
 	"io"
 	"math"
+	"slices"
 	"sort"
 	"unicode"
 	"unicode/utf8"
@@ -17,7 +18,6 @@ import (
 	"gioui.org/op/paint"
 	"gioui.org/text"
 	"gioui.org/unit"
-	"golang.org/x/exp/slices"
 	"golang.org/x/image/math/fixed"
 )