test: remove redundant build_test.bats (covered by build-iso_comprehensive_test.bats)

💘 Generated with Crush

Assisted-by: GLM-4.7 via Crush <crush@charm.land>

tests/unit/build_test.bats

@@ -1,10 +0,0 @@
-#!/usr/bin/env bats
-# Unit tests for build-iso.sh
-
-@test "build-iso.sh exists" {
-    [ -f "/workspace/src/build-iso.sh" ]
-}
-
-@test "build-iso.sh is executable" {
-    [ -x "/workspace/src/build-iso.sh" ]
-}