Update permission requirements for API

- Automatically use model permissions by default!
-

InvenTree/company/api.py

@@ -7,7 +7,7 @@ from __future__ import unicode_literals
 
 from django_filters.rest_framework import DjangoFilterBackend
 from rest_framework import filters
-from rest_framework import generics, permissions
+from rest_framework import generics
 
 from django.conf.urls import url, include
 from django.db.models import Q
@@ -40,10 +40,6 @@ class CompanyList(generics.ListCreateAPIView):
 
         return queryset
     
-    permission_classes = [
-        permissions.IsAuthenticated,
-    ]
-
     filter_backends = [
         DjangoFilterBackend,
         filters.SearchFilter,
@@ -82,10 +78,6 @@ class CompanyDetail(generics.RetrieveUpdateDestroyAPIView):
 
         return queryset
     
-    permission_classes = [
-        permissions.IsAuthenticated,
-    ]
-
 
 class SupplierPartList(generics.ListCreateAPIView):
     """ API endpoint for list view of SupplierPart object
@@ -170,10 +162,6 @@ class SupplierPartList(generics.ListCreateAPIView):
 
     serializer_class = SupplierPartSerializer
 
-    permission_classes = [
-        permissions.IsAuthenticated,
-    ]
-
     filter_backends = [
         DjangoFilterBackend,
         filters.SearchFilter,
@@ -202,7 +190,6 @@ class SupplierPartDetail(generics.RetrieveUpdateDestroyAPIView):
 
     queryset = SupplierPart.objects.all()
     serializer_class = SupplierPartSerializer
-    permission_classes = (permissions.IsAuthenticated,)
 
     read_only_fields = [
     ]
@@ -218,10 +205,6 @@ class SupplierPriceBreakList(generics.ListCreateAPIView):
     queryset = SupplierPriceBreak.objects.all()
     serializer_class = SupplierPriceBreakSerializer
 
-    permission_classes = [
-        permissions.IsAuthenticated,
-    ]
-
     filter_backends = [
         DjangoFilterBackend,
     ]