Drop tflite and flatbuffer dependencies

There is not real need for the linux_driver_stack to know about tflite
and flatbuffers.  A better approach is to just pass the buffer to the
firmware to be processes, i.e., either parsed or executed.

This solves issues when linux_driver_stack and firmware are not in
sync with the same library versions.

Change-Id: I9b2a12e69f37f61b1ac594433a15883fb1c67b9c
diff --git a/CMakeLists.txt b/CMakeLists.txt
index e447afb..603e19b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2020-2021 Arm Limited. All rights reserved.
+# Copyright (c) 2020-2022 Arm Limited. All rights reserved.
 #
 # SPDX-License-Identifier: Apache-2.0
 #
@@ -54,16 +54,6 @@
     add_subdirectory(remoteproc)
 endif()
 
-# Build flatbuffers
-unset(PROJECT_VERSION)
-unset(PROJECT_VERSION_MAJOR)
-unset(PROJECT_VERSION_MINOR)
-option(FLATBUFFERS_BUILD_TESTS OFF)
-option(FLATBUFFERS_INSTALL OFF)
-option(FLATBUFFERS_BUILD_FLATC OFF)
-option(FLATBUFFERS_BUILD_FLATHASH OFF)
-add_subdirectory(flatbuffers)
-
 # Build driver library
 add_subdirectory(driver_library)