Use fs_config_generator.py to generate fs_config_files/dirs directly

We want to remove target specific host tools and since
fs_config_generate is compiled with a target specific header file, we
instead remove fs_config_generate entirely and allow python to build
the fs_config_files/dirs files directly from config.fs files and
parsed C headers.

Test: associated unit tests and new end to end test
Test: aosp_sailfish, aosp_crosshatch build produces valid fs_config files
Test: aosp_cf_x86_phone build correctly produces empty fs_config files
Change-Id: Idbc63ff56c0979e1e4c17721371de9d9d02dc8ff

tools/fs_config/Android.bp

@@ -21,43 +21,3 @@ cc_binary_host {
     ],
     cflags: ["-Werror"],
 }
-
-// -----------------------------------------------------------------------------
-// Unit tests.
-// -----------------------------------------------------------------------------
-
-test_c_flags = [
-    "-fstack-protector-all",
-    "-g",
-    "-Wall",
-    "-Wextra",
-    "-Werror",
-    "-fno-builtin",
-    "-DANDROID_FILESYSTEM_CONFIG=\"android_filesystem_config_test_data.h\"",
-]
-
-//#################################
-// test executable
-cc_test_host {
-    name: "fs_config_generate_test",
-    srcs: ["fs_config_generate.c"],
-    shared_libs: ["libcutils"],
-    cflags: test_c_flags,
-    relative_install_path: "fs_config-unit-tests",
-    no_named_install_directory: true,
-    gtest: false,
-
-}
-
-//#################################
-// gTest tool
-cc_test_host {
-    name: "fs_config-unit-tests",
-    cflags: test_c_flags + ["-DHOST"],
-    shared_libs: [
-        "liblog",
-        "libcutils",
-        "libbase",
-    ],
-    srcs: ["fs_config_test.cpp"],
-}