Revert "Revert "Remove futility prebuilts.""

This reverts commit 7ba48cbcd5dcdbde083738c180bcb9fa64305960.

Reason for revert: We have solved the building issue for futility-host (commit 4b577413ff5c43e9b857f5c1685d6909e7ca27ba in platform/build).

Bug: 35467608
Change-Id: I374dea779a68e2e42f8136e022ab67f50e9f1a28
diff --git a/darwin-x86/futility/MODULE_LICENSE_BSD_LIKE b/darwin-x86/futility/MODULE_LICENSE_BSD_LIKE
deleted file mode 100644
index e69de29..0000000
--- a/darwin-x86/futility/MODULE_LICENSE_BSD_LIKE
+++ /dev/null
diff --git a/darwin-x86/futility/PREBUILT b/darwin-x86/futility/PREBUILT
deleted file mode 100644
index 30b452c..0000000
--- a/darwin-x86/futility/PREBUILT
+++ /dev/null
@@ -1,2 +0,0 @@
-The binaries in this prebuilt directory can be rebuilt using
-the source in external/vboot_reference with build command "make futility-host".
diff --git a/darwin-x86/futility/futility b/darwin-x86/futility/futility
deleted file mode 100755
index 26f2d2d..0000000
--- a/darwin-x86/futility/futility
+++ /dev/null
Binary files differ
diff --git a/linux-x86/futility/MODULE_LICENSE_BSD_LIKE b/linux-x86/futility/MODULE_LICENSE_BSD_LIKE
deleted file mode 100644
index e69de29..0000000
--- a/linux-x86/futility/MODULE_LICENSE_BSD_LIKE
+++ /dev/null
diff --git a/linux-x86/futility/PREBUILT b/linux-x86/futility/PREBUILT
deleted file mode 100644
index 30b452c..0000000
--- a/linux-x86/futility/PREBUILT
+++ /dev/null
@@ -1,2 +0,0 @@
-The binaries in this prebuilt directory can be rebuilt using
-the source in external/vboot_reference with build command "make futility-host".
diff --git a/linux-x86/futility/futility b/linux-x86/futility/futility
deleted file mode 100755
index 4c44275..0000000
--- a/linux-x86/futility/futility
+++ /dev/null
Binary files differ