remove current user middleware

src/account/migrations/0001_initial.py

src/account/migrations/0002_auto_20190122_1341.py

src/account/migrations/0003_auto_20200202_1541.py

src/account/migrations/0004_remove_profile_image.py

src/account/migrations/0005_auto_20200202_2058.py

src/account/migrations/0006_auto_20200202_2100.py

src/common/middleware.py

src/document/migrations/0001_initial.py

src/document/migrations/0002_auto_20190121_1332.py

src/document/migrations/0003_auto_20190121_1335.py

src/document/migrations/0004_auto_20190123_1812.py

src/document/migrations/0005_auto_20190129_1438.py

src/document/migrations/0006_auto_20200203_0016.py

src/document/migrations/0007_auto_20200204_1442.py

src/homework/migrations/0001_initial.py

src/homework/migrations/0002_auto_20190121_2124.py

src/homework/migrations/0003_auto_20200202_1541.py

src/homework/migrations/0004_auto_20200204_1457.py

src/kszkepzes/settings/base.py

src/mentors/migrations/0001_initial.py