Remove deprecated DeltaLake functions #651

Job	Run time
Buena Vista functional test / python 3.9	10m 0s
build packages	12s
code-quality	1m 17s
Check if MotherDuck v0.10.x token exists	1s
file-based functional test / python 3.8	2m 54s
fsspec test / python 3.9	57s
file-based functional test / python 3.9	3m 0s
functional test / python 3.8	2m 33s
plugins test / python 3.9	57s
file-based functional test / python 3.10	3m 2s
functional test / python 3.9	2m 41s
file-based functional test / python 3.11	2m 37s
functional test / python 3.10	2m 44s
functional test / python 3.11	2m 10s
unit test / python 3.8	1m 3s
unit test / python 3.9	1m 0s
unit test / python 3.10	1m 1s
unit test / python 3.11	51s
MotherDuck functional test / python 3.9	3m 39s
verify packages / python 3.8 / ubuntu-latest	38s
verify packages / python 3.9 / ubuntu-latest	31s
verify packages / python 3.10 / ubuntu-latest	31s
verify packages / python 3.11 / ubuntu-latest	31s
verify packages / python 3.8 / macos-latest	1m 6s
verify packages / python 3.9 / macos-latest	26s
verify packages / python 3.10 / macos-latest	28s
verify packages / python 3.11 / macos-latest	24s
verify packages / python 3.8 / windows-latest	1m 35s
verify packages / python 3.9 / windows-latest	1m 27s
verify packages / python 3.10 / windows-latest	1m 46s
verify packages / python 3.11 / windows-latest	1m 16s
	53m 18s

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