update Tensorflow to 2.6.0

build/cmake/tensorflow_lite.cmake

diff --git a/build/cmake/tensorflow_lite.cmake b/build/cmake/tensorflow_lite.cmake
index 9dd678d..b44eb63 100644
--- a/build/cmake/tensorflow_lite.cmake
+++ b/build/cmake/tensorflow_lite.cmake
@@ -85,8 +85,6 @@
   target_link_tf_lite_dep_(${named_target} _deps/abseil-cpp-build/absl/flags/
                            absl_flags_internal)
   target_link_tf_lite_dep_(${named_target} _deps/abseil-cpp-build/absl/flags/
-                           absl_flags_registry)
-  target_link_tf_lite_dep_(${named_target} _deps/abseil-cpp-build/absl/flags/
                            absl_flags_config)
   target_link_tf_lite_dep_(${named_target} _deps/abseil-cpp-build/absl/flags/
                            absl_flags_program_name)
@@ -133,8 +131,6 @@
   target_link_tf_lite_dep_(${named_target} _deps/abseil-cpp-build/absl/base/
                            absl_base)
   target_link_tf_lite_dep_(${named_target} _deps/abseil-cpp-build/absl/base/
-                           absl_dynamic_annotations)
-  target_link_tf_lite_dep_(${named_target} _deps/abseil-cpp-build/absl/base/
                            absl_spinlock_wait)
   target_link_tf_lite_dep_(${named_target} _deps/abseil-cpp-build/absl/numeric/
                            absl_int128)

third_party/tensorflow

diff --git a/third_party/tensorflow b/third_party/tensorflow
index ce0d0a4..919f693 160000
--- a/third_party/tensorflow
+++ b/third_party/tensorflow
@@ -1 +1 @@
-Subproject commit ce0d0a458c87c8c3c541d56bfbea85455e4c7003
+Subproject commit 919f693420e35d00c8d0a42100837ae3718f7927