Disable compile sandboxing, add global incl const

These two changes facilitate more soong-like include handling in cc
libraries, which will help us sprint towards building bionic in mixed
builds.

Test: mixed_libc.sh and bp2build.sh ci scripts
Change-Id: If2d08f9a20f9d6faa405ae73cb8d28469891643f
diff --git a/bazel.BUILD b/bazel.BUILD
index c23ac90..5fdaa1b 100644
--- a/bazel.BUILD
+++ b/bazel.BUILD
@@ -1,56 +1 @@
-load(
-  "@lunch//:env.bzl",
-  "TARGET_PRODUCT",
-  "TARGET_BUILD_VARIANT",
-  "COMBINED_NINJA",
-  "KATI_NINJA",
-  "PACKAGE_NINJA",
-  "SOONG_NINJA"
-)
-
-ninja_graph(
-    name = "combined_graph",
-    main = COMBINED_NINJA,
-    # This assumes that --skip-make is *not* used, so the Kati and Package files exists.
-    ninja_srcs = [
-        KATI_NINJA,
-        PACKAGE_NINJA,
-        SOONG_NINJA,
-    ],
-    # TODO(b/171012031): Stop hardcoding "out/".
-    output_root = "out",
-    # These files are created externally of the Ninja action graph, for
-    # example, when Kati parses the product configuration Make files to
-    # create soong/soong.variables.
-    #
-    # Since these aren't created by actions in the ninja_graph .ninja
-    # inputs, Bazel will fail with missing inputs while executing
-    # ninja_build. output_root_inputs allowlists these files for Bazel to
-    # symlink them into the execution root, treating them as source files
-    # in the output directory (toplevel_output_directories).
-    output_root_inputs = [
-        "build_date.txt",
-        "empty",
-        "soong/build_number.txt",
-        "soong/dexpreopt.config",
-        "soong/soong.variables",
-    ],
-    output_root_input_dirs = [
-        "bazel/output/execroot/sourceroot",
-        "bazel/output/execroot/bazel_tools",
-        ".module_paths",
-        "soong/.bootstrap",
-        "soong/.minibootstrap",
-    ],
-)
-
-ninja_build(
-    name = "%s-%s" % (TARGET_PRODUCT, TARGET_BUILD_VARIANT),
-    ninja_graph = ":combined_graph",
-    output_groups = {
-        "droid": ["droid"],
-        # TODO(b/160568333): Stop hardcoding output groups statically for Ninja targets.
-        # libc is declared here to support CI builds running USE_BAZEL=1 USE_BAZEL_ANALYSIS=1 m libc
-        "libc": ["libc"],
-    },
-)
+filegroup(name="empty", visibility=["//visibility:public"])