fixed the removed user being referenced in other places

server/backend/migration/static_data/source-schema.sql

@@ -695,8 +695,6 @@ create table if not exists roomfinder_building2area
     name        varchar(32) not null
 ) charset = utf8mb4;
 
-grant select on table roomfinder_building2area to 'tca-students';
-
 create table if not exists roomfinder_buildings
 (
     building_nr    varchar(8)  not null primary key,
@@ -706,8 +704,6 @@ create table if not exists roomfinder_buildings
     default_map_id int         null
 ) charset = utf8mb4;
 
-grant select on table roomfinder_buildings to 'tca-students';
-
 create table if not exists roomfinder_buildings2gps
 (
     id        varchar(8) default '' not null primary key,
@@ -722,8 +718,6 @@ create table if not exists roomfinder_buildings2maps
     primary key (building_nr, map_id)
 ) charset = utf8mb4;
 
-grant select on table roomfinder_buildings2maps to 'tca-students';
-
 create table if not exists roomfinder_maps
 (
     map_id      int         not null primary key,
@@ -733,8 +727,6 @@ create table if not exists roomfinder_maps
     height      int         not null
 ) charset = utf8mb4;
 
-grant select on table roomfinder_maps to 'tca-students';
-
 create table if not exists roomfinder_rooms
 (
     room_id        int          not null primary key,
@@ -753,8 +745,6 @@ create table if not exists roomfinder_rooms
     default_map_id int          null
 ) charset = utf8mb4;
 
-grant select on table roomfinder_rooms to 'tca-students';
-
 create table if not exists roomfinder_rooms2maps
 (
     room_id int not null,
@@ -773,8 +763,6 @@ create table if not exists roomfinder_schedules
     constraint `unique` unique (room_id, start, end)
 ) charset = utf8mb4;
 
-grant select on table roomfinder_schedules to 'tca-students';
-
 create table if not exists sessions
 (
     session varchar(255) charset utf8 not null primary key,