python-onnxruntime: fix building with flatbuffers 2.0.7

Upstream flatbuffers renamed the package from Flatbuffers to FlatBuffers
(capital B) [1].

Fixes the issue reported at
https://aur.archlinux.org/packages/python-onnxruntime#comment-879320

Also drops patches that are part of the latest version.

[1] google/flatbuffers#7378

archlinuxcn/python-onnxruntime/PKGBUILD

@@ -46,7 +46,7 @@ sha512sums=('SKIP'
             'SKIP'
             'SKIP'
             'SKIP'
-            'ab0446ede08e528ca631a73e536ff42009ee8f152972d37050b2f9b44b3d1c06d19bd8a91c31b09c26f5db1482a699b8fe2c221b78199199dfa245728856b196'
+            '6ad02636e2cba8f2e82f5ac733856eee3016750e809ee18a41c4edc78bca761f30ac174d7d683f9b14b9f72310dd654811b1ecc9dda514e12bac6b7440c449c2'
             '7d55b0d4232183a81c20a5049f259872150536eed799d81a15e7f10b5c8b5279b443ba96d7b97c0e4338e95fc18c9d6f088e348fc7002256ee7170d25b27d80d'
             '6735c7aca2ba2f1f2a5286eb064125bf7f2c68a575d572dd157769d15778ff3e717b3a53d696c767748229f23ee6c3a7c82679df1d86283d7c4dd0ec9103ae08')
 # CUDA seems not working with LTO
@@ -67,11 +67,6 @@ prepare() {
   patch -Np1 -i ../install-orttraining-files.diff
   patch -Np1 -i ../system-dnnl.diff
 
-  # Protobuf 3.20 incompatibility https://github.com/microsoft/onnxruntime/pull/11639
-  git cherry-pick -n 6aa286f1e3ece96a7326ea55fdcd225f1ff8bbf2
-  # Fix building DNNL EP with GCC 12 https://github.com/microsoft/onnxruntime/pull/11667
-  git cherry-pick -n 59ca05cb1c1de0492d10ac895904b217c86e612d
-
   git submodule init
   for mod in onnx SafeInt tensorboard dlpack cxxopts pytorch_cpuinfo; do
     git config submodule.cmake/external/$mod.url "$srcdir"/$mod

archlinuxcn/python-onnxruntime/build-fixes.patch

@@ -25,9 +25,15 @@ index a027c69e0..eb7608518 100644
    message("Use re2 from preinstalled system lib")
  else()
    add_subdirectory(external/re2 EXCLUDE_FROM_ALL)
-@@ -1421,7 +1421,7 @@
+@@ -1421,11 +1421,11 @@
+ #Dependencies end. In the next we'll enable "treat warning as error"
+
+ if (onnxruntime_PREFER_SYSTEM_LIB)
+-  find_package(Flatbuffers)
++  find_package(FlatBuffers)
  endif()
- if (Flatbuffers_FOUND)
+-if (Flatbuffers_FOUND)
++if (FlatBuffers_FOUND)
    message("Use flatbuffers from preinstalled system lib")
 -  add_library(flatbuffers ALIAS flatbuffers::flatbuffers)
 +  add_library(flatbuffers ALIAS flatbuffers::flatbuffers_shared)