Remove SortPriority from .clang-format

- SortPriority is supported by local clang client but doesn't work with
repo upload.

Bug: 168720830
Bug: 169456588
Test: repo upload from packages/services/Car/cpp should work
Change-Id: I44f159d13a3551c90e27f9a856ee9e0a1d66637a
diff --git a/.clang-format b/.clang-format
index fd72b1d..3380a2a 100644
--- a/.clang-format
+++ b/.clang-format
@@ -27,13 +27,10 @@
 IncludeCategories:
   - Regex:           '^<[[:alnum:]_]+\.h>'
     Priority:        3
-    SortPriority:    3
   - Regex:           '^<sys/(auxv|cachectl|capability|cdefs|endian|epoll|errno|eventfd|fcntl|file|fsuid|ifunc|inotify|ioctl|ipc|klog|limits|mman|mount|msg|mtio|param|personality|poll|prctl|procfs|ptrace|queue|quota|random|reboot|reg|resource|select|sem|sendfile|shm|signalfd|signal|socket|statfs|stat|statvfs|swap|syscall|sysconf|sysinfo|syslog|sysmacros|_system_properties|system_properties|thread_properties|time|timerfd|times|timex|ttydefaults|types|ucontext|uio|un|unistd|user|utsname|vfs|vt|wait|xattr)\.h>'
     Priority:        3
-    SortPriority:    3
   - Regex:           '^<[[:alnum:]_]+>'
-    Priority:        3
-    SortPriority:    4
+    Priority:        4
   - Regex:           '^<.*/[[:alnum:]_]+\.h>'
     Priority:        2
   - Regex:           '^".*'