Remove Kotlin files excluded in ThemePicker ktfmt hook

This CL removes the excluded files list from the ktfmt hook so that we
can migrate to using the built-in ktfmt hook (that does not support
excluding files).

This list of excluded files was introduced at the time because we mostly
wanted to avoid merge conflicts between the different *dev* branches we
had to juggle with, but now that we all work in main I think that it's
fine to remove and even good for consistency accross our codebase.

See b/230545175#comment4 and b/230545175#comment5 for details.

Bug: 342153000
Test: N/A
Flag: NONE Repohook Update
Change-Id: I42bc4a02bd2266c400b5141e3a288498044aa94d
diff --git a/ktfmt_includes.txt b/ktfmt_includes.txt
index 0708ab2..112b4a1 100644
--- a/ktfmt_includes.txt
+++ b/ktfmt_includes.txt
@@ -1,4 +1,3 @@
 +src/
 +src_override/
 +tests/
--src/com/android/customization/module/SysUiStatsLogger.kt