tests: cleanup the basic structure of integration tests.

tests/bats/lsusb.bats

@@ -5,24 +5,14 @@
 
 load common
 
-setup_file() {
-    aa_setup
-}
-
-# bats test_tags=lsusb
 @test "lsusb: List all the USB devices available" {
     lsusb || true
-    aa_check
 }
 
-# bats test_tags=lsusb
 @test "lsusb: List the USB hierarchy as a tree" {
     lsusb -t || true
-    aa_check
 }
 
-# bats test_tags=lsusb
 @test "lsusb: List verbose information about USB devices" {
     lsusb --verbose || true
-    aa_check
 }