[llvm] AMDGPU: Remove flat/global fmin/fmax intrinsics (PR #105642)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-aarch64-linux-fuzzer` running on `sanitizer-buildbot11` while building `llvm` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/159/builds/7787

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 2 (annotate) failure: 'python ../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py' (failure) (timed out)
...
[5/7] Linking CXX shared library /home/b/sanitizer-aarch64-linux-fuzzer/build/llvm_build0/lib/clang/20/lib/aarch64-unknown-linux-gnu/libclang_rt.ubsan_standalone.so
[6/7] Linking CXX shared library /home/b/sanitizer-aarch64-linux-fuzzer/build/llvm_build0/lib/clang/20/lib/aarch64-unknown-linux-gnu/libclang_rt.hwasan.so
[7/7] Linking CXX shared library /home/b/sanitizer-aarch64-linux-fuzzer/build/llvm_build0/lib/clang/20/lib/aarch64-unknown-linux-gnu/libclang_rt.asan.so
[20/22] No install step for 'runtimes'
[22/22] Completed 'runtimes'
02a9cac8b07f7ebb5a12cb2ad6427507  llvm_build0/bin/clang
@@@BUILD_STEP get fuzzer-test-suite @@@
Already up to date.
@@@BUILD_STEP test libxml2-v2.9.2 fuzzer@@@
Cloning into 'SRC'...
command timed out: 1200 seconds without output running [b'python', b'../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py'], attempting to kill
process killed by signal 9
program finished with exit code -1
elapsedTime=1242.223521
Step 9 (test libxml2-v2.9.2 fuzzer) failure: test libxml2-v2.9.2 fuzzer (failure)
@@@BUILD_STEP test libxml2-v2.9.2 fuzzer@@@
Cloning into 'SRC'...

command timed out: 1200 seconds without output running [b'python', b'../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py'], attempting to kill
process killed by signal 9
program finished with exit code -1
elapsedTime=1242.223521

```

</details>

https://github.com/llvm/llvm-project/pull/105642