[wp] Removes old cache entries

...var.0.session/cache/5e11e16d3bdef94a9e79073dbee378c6.json

...var.0.session/cache/8992f7f080748be0b29a31cf47208af3.json

...var.0.session/cache/a24ad3a34f18593488e5d801d393dde6.json

...var.0.session/cache/c951fdb6d5b9c5cf37b30b8e09d451d2.json

...var.0.session/cache/d4db793d5927f5155b26139dee98cdc5.json

...var.0.session/cache/fcfc9f465c8cb0d89783e7a308867761.json