tests: cleanup the basic structure of integration tests.

tests/bats/upower.bats

@@ -5,25 +5,15 @@
 
 load common
 
-setup_file() {
-    aa_setup
-}
-
-# bats test_tags=upower
 @test "upower: Display power and battery information" {
     upower --dump
-    aa_check
 }
 
-# bats test_tags=upower
 @test "upower: List all power devices" {
     upower --enumerate
-    aa_check
 }
 
-# bats test_tags=upower
 @test "upower: Display version" {
     upower --version
-    aa_check
 }