python3-tomlkit: Remove recipe, it is in oe-core now

python3-tomlkit was added to oe-core (46d3b26a63 "python3-tomlkit: add
new recipe (from meta-oe)") and is at 0.15.2 there, so the meta-python
0.15.1 copy is not used. Drop it, and drop it from the meta-python ptest
list as oe-core's ptest-packagelists.inc already lists it.

Signed-off-by: Khem Raj <khem.raj@oss.qualcomm.com>
Cc: Ross Burton <ross.burton@arm.com>

meta-python/conf/include/ptest-packagelists-meta-python.inc

@@ -115,7 +115,6 @@ PTESTS_FAST_META_PYTHON = "\
     python3-time-machine \
     python3-tokenize-rt \
     python3-tomli-w \
-    python3-tomlkit \
     python3-trustme \
     python3-typeguard \
     python3-typing-inspection \