Remove unused image upload button

Unused code has a maintenance cost. This has been in the project for a few years.

Author: zetter-rpf

public/translations/en-US.json

@@ -297,19 +297,6 @@
     "loading": "Loading",
     "failed": "Load failed"
   },
-  "imageUploadButton": {
-    "uploadImage": "Upload image",
-    "uploadAnImage": "Upload an image",
-    "info": "Drag and drop images here, or click to select images from file",
-    "cancel": "Cancel",
-    "save": "Save",
-    "or": "or",
-    "errors": {
-      "error": "Error",
-      "imageNameNotUnique": "Image names must be unique.",
-      "invalidImageExtension": "Image names must end in {{extensions}}."
-    }
-  },
   "newInputPanelButton": {
     "buttonText": "Add another panel"
   },

public/translations/en.json

@@ -298,19 +298,6 @@
     "loading": "Loading",
     "failed": "Load failed"
   },
-  "imageUploadButton": {
-    "uploadImage": "Upload image",
-    "uploadAnImage": "Upload an image",
-    "info": "Drag and drop images here, or click to select images from file",
-    "cancel": "Cancel",
-    "save": "Save",
-    "or": "or",
-    "errors": {
-      "error": "Error",
-      "imageNameNotUnique": "Image names must be unique.",
-      "invalidImageExtension": "Image names must end in {{extensions}}."
-    }
-  },
   "newInputPanelButton": {
     "buttonText": "Add another panel"
   },

public/translations/es-LA.json

@@ -297,19 +297,6 @@
     "loading": "Cargando",
     "failed": "Error al cargar"
   },
-  "imageUploadButton": {
-    "uploadImage": "Subir imagen",
-    "uploadAnImage": "Subir una imagen",
-    "info": "Arrastra y suelta imágenes aquí o haz clic para seleccionar imágenes de un archivo",
-    "cancel": "Cancelar",
-    "save": "Guardar",
-    "or": "o",
-    "errors": {
-      "error": "Error",
-      "imageNameNotUnique": "Los nombres de imagen deben ser únicos.",
-      "invalidImageExtension": "Los nombres de imagen deben terminar en {{extensions}}."
-    }
-  },
   "newInputPanelButton": {
     "buttonText": "Agregar otro panel"
   },

public/translations/fr-FR.json

@@ -297,19 +297,6 @@
     "loading": "Chargement en cours",
     "failed": "Échec du chargement"
   },
-  "imageUploadButton": {
-    "uploadImage": "Téléverser une image",
-    "uploadAnImage": "Téléverser une image",
-    "info": "Faire glisser et déposer les images ici, ou cliquer pour sélectionner des images à partir du fichier",
-    "cancel": "Annuler",
-    "save": "Enregistrer",
-    "or": "ou",
-    "errors": {
-      "error": "Erreur",
-      "imageNameNotUnique": "Le nom des images doit être unique.",
-      "invalidImageExtension": "Le nom des images doit se terminer par {{extensions}}."
-    }
-  },
   "newInputPanelButton": {
     "buttonText": "Ajouter une autre panneau"
   },

public/translations/xx-XX.json

@@ -296,18 +296,6 @@
     "loading": "Wird geladen",
     "failed": "Laden fehlgeschlagen"
   },
-  "imageUploadButton": {
-    "uploadImage": "Bild hochladen",
-    "uploadAnImage": "Laden Sie ein Bild hoch",
-    "info": "Ziehen Sie Bilder hierher, oder klicken Sie, um Bilder aus der Datei auszuwählen",
-    "cancel": "Stornieren",
-    "save": "Speichern",
-    "errors": {
-      "error": "Fehler",
-      "imageNameNotUnique": "Bildnamen müssen eindeutig sein.",
-      "invalidImageExtension": "Bildnamen müssen enden auf {{extensions}}."
-    }
-  },
   "newInputPanelButton": {
     "buttonText": "Fügen Sie ein weiteres Panel hinzu"
   },