Datepicker: Remove symbols in localization

Follow-up to dfff5e7e999453f5d080c184bd4e3fdbfc93b83e

Fixes gh-2048
Closes gh-2050

ui/i18n/datepicker-fi.js

@@ -17,8 +17,8 @@
 
 datepicker.regional.fi = {
 	closeText: "Sulje",
-	prevText: "«Edellinen",
-	nextText: "Seuraava»",
+	prevText: "Edellinen",
+	nextText: "Seuraava",
 	currentText: "Tänään",
 	monthNames: [ "Tammikuu", "Helmikuu", "Maaliskuu", "Huhtikuu", "Toukokuu", "Kesäkuu",
 	"Heinäkuu", "Elokuu", "Syyskuu", "Lokakuu", "Marraskuu", "Joulukuu" ],

ui/i18n/datepicker-is.js

@@ -17,7 +17,7 @@
 
 datepicker.regional.is = {
 	closeText: "Loka",
-	prevText: " Fyrri",
+	prevText: "Fyrri",
 	nextText: "Næsti ",
 	currentText: "Í dag",
 	monthNames: [ "Janúar", "Febrúar", "Mars", "Apríl", "Maí", "Júní",

ui/i18n/datepicker-ka.js

@@ -17,7 +17,7 @@
 
 datepicker.regional.ka = {
 	closeText: "დახურვა",
-	prevText: " წინა",
+	prevText: "წინა",
 	nextText: "შემდეგი ",
 	currentText: "დღეს",
 	monthNames: [

ui/i18n/datepicker-nl-BE.js

@@ -17,8 +17,8 @@
 
 datepicker.regional[ "nl-BE" ] = {
 	closeText: "Sluiten",
-	prevText: "←",
-	nextText: "→",
+	prevText: "",
+	nextText: "",
 	currentText: "Vandaag",
 	monthNames: [ "januari", "februari", "maart", "april", "mei", "juni",
 	"juli", "augustus", "september", "oktober", "november", "december" ],

ui/i18n/datepicker-nl.js

@@ -17,8 +17,8 @@
 
 datepicker.regional.nl = {
 	closeText: "Sluiten",
-	prevText: "←",
-	nextText: "→",
+	prevText: "",
+	nextText: "",
 	currentText: "Vandaag",
 	monthNames: [ "januari", "februari", "maart", "april", "mei", "juni",
 	"juli", "augustus", "september", "oktober", "november", "december" ],

ui/i18n/datepicker-ro.js

@@ -20,7 +20,7 @@
 
 datepicker.regional.ro = {
 	closeText: "Închide",
-	prevText: " Luna precedentă",
+	prevText: "Luna precedentă",
 	nextText: "Luna următoare ",
 	currentText: "Azi",
 	monthNames: [ "Ianuarie", "Februarie", "Martie", "Aprilie", "Mai", "Iunie",

ui/i18n/datepicker-th.js

@@ -17,8 +17,8 @@
 
 datepicker.regional.th = {
 	closeText: "ปิด",
-	prevText: " ย้อน",
-	nextText: "ถัดไป ",
+	prevText: "ย้อน",
+	nextText: "ถัดไป",
 	currentText: "วันนี้",
 	monthNames: [ "มกราคม", "กุมภาพันธ์", "มีนาคม", "เมษายน", "พฤษภาคม", "มิถุนายน",
 	"กรกฎาคม", "สิงหาคม", "กันยายน", "ตุลาคม", "พฤศจิกายน", "ธันวาคม" ],