gnu: tensorflow-lite: Update to 2.14.0.

* gnu/packages/patches/tensorflow-lite-unbundle.patch: Remove it.
* gnu/local.mk: De-register patch.
* gnu/packages/machine-learning.scm (tensorflow-lite): Update to 2.14.0.
[source]: De-register patch.
[inputs]: Improve style. Add python-ml-dtypes. Replace
flatbuffers-23.1 by flatbuffers-23.5.
[arguments]<#:configure-flags>: Refresh them.
<#:phases>: Add phases 'unbundle and 'gemmlowp-fix. Refresh phases
'install-extra and 'copy-sources.
* gnu/packages/serialization.scm (flatbuffers-23.5): Update comment.

Change-Id: Ifeadfaa9173df4e0be08ce4f0dc13a4cd5297c0e
Signed-off-by: Andreas Enge <andreas@enge.fr>

gnu/packages/patches/tensorflow-lite-unbundle.patch

@@ -1,27 +0,0 @@
-Disable local CMake build code for bundled 3rdparty components.
-
-diff --git a/tensorflow/lite/CMakeLists.txt b/tensorflow/lite/CMakeLists.txt
-index 0476170e075..90abea00e8c 100644
---- a/tensorflow/lite/CMakeLists.txt
-+++ b/tensorflow/lite/CMakeLists.txt
-@@ -564,7 +564,7 @@ set(_ALL_TFLITE_HDRS ${_ALL_TFLITE_SRCS})
- list(FILTER _ALL_TFLITE_HDRS INCLUDE REGEX ".*\\.h$")
- target_include_directories(tensorflow-lite
-   PUBLIC $<BUILD_INTERFACE:${TENSORFLOW_SOURCE_DIR}> $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
--  ${CMAKE_BINARY_DIR}/gemmlowp
-+  ${gemmlowp_ROOT}/include/gemmlowp
- )
- target_link_libraries(tensorflow-lite
-   PUBLIC
-diff --git a/tensorflow/lite/tools/cmake/modules/Findgemmlowp.cmake b/tensorflow/lite/tools/cmake/modules/Findgemmlowp.cmake
-index 70331ad0a69..a9bd8a0f3bd 100644
---- a/tensorflow/lite/tools/cmake/modules/Findgemmlowp.cmake
-+++ b/tensorflow/lite/tools/cmake/modules/Findgemmlowp.cmake
-@@ -18,7 +18,6 @@
- include(gemmlowp)
- if(gemmlowp_POPULATED)
-   set(GEMMLOWP_FOUND TRUE)
--  get_target_property(GEMMLOWP_INCLUDE_DIRS gemmlowp INTERFACE_DIRECTORIES)
-   set(GEMMLOWP_LIBRARIES
-     gemmlowp
-     gemmlowp_fixedpoint