Revert "libcutils_header exports liblog_headers"

This reverts commit 8f63b6cfcae8c843deb1f7e961ecf913f6603834.

Reason for revert: the use of cutils/log.h is discouraged. clients should use log/log.h. aosp/420955

Bug: 37342627
Change-Id: I6605aa89b0ef2b9afd0fdd52c1dee1ee0021debd
diff --git a/libcutils/Android.bp b/libcutils/Android.bp
index 0ad714f..d00ff5f 100644
--- a/libcutils/Android.bp
+++ b/libcutils/Android.bp
@@ -34,8 +34,6 @@
     vendor_available: true,
     host_supported: true,
     export_include_dirs: ["include"],
-    header_libs: ["liblog_headers"],
-    export_header_lib_headers: ["liblog_headers"],
     target: {
         vendor: {
             export_include_dirs: ["include_vndk"],