Fix school join in classroom route

src/libs/routes/classroom.js

@@ -84,11 +84,6 @@ rqf.addField({
         relation: '=',
         type: 'integer',
         field: 'id'
-    },
-    join: {
-        primary: ['id', 'ano_censo'],
-        foreign: ['escola_id', 'ano_censo'],
-        foreignTable: 'matricula'
     }
 }, 'dims').addValueToField({
     name: 'school',
@@ -99,11 +94,6 @@ rqf.addField({
         relation: '=',
         type: 'integer',
         field: 'id'
-    },
-    join: {
-        primary: ['id', 'ano_censo'],
-        foreign: ['escola_id', 'ano_censo'],
-        foreignTable: 'matricula'
     }
 }, 'filter').addValueToField({
     name: 'city',