System Information
Operating system: Win 10 x64
Graphics card: Nvidia 310m
Blender Version
Broken: blender-2.82-fc1f5bded46a-windows64.zip, blender-2.83-39cf62607fe5-windows64.zip
Short description of error
When deleting a Cycles sampling preset, an exception popuped, and deleting failed.
Exact steps for others to reproduce the error
Based on the default startup or an attached .blend file (as simple as possible).
"Render Properties" panel, change Render engine to Cycles
"Sampling" section, use "+" sign add "New Preset"
press "-" sign right to "New Preset". Here prompt "Add a sampling preset." It should be "Delete a sampling preset."
Exception happen, and deleting fail.
Exception info reads:
```
Traceback (most recent call last):
File "E:\WINAPP_B\blender-2.82-c5436883c66f-windows64\2.82\scripts\startup\bl_operators\presets.py", line 195, in execute
if is_path_builtin(filepath):
File "E:\WINAPP_B\blender-2.82-c5436883c66f-windows64\2.82\scripts\modules\bpy\utils\__init__.py", line 485, in is_path_builtin
_os.path.commonpath([parent_path, path])
File "E:\WINAPP_B\blender-2.82-c5436883c66f-windows64\2.82\python\lib\ntpath.py", line 621, in commonpath
raise ValueError("Paths don't have the same drive")
ValueError: Paths don't have the same drive
location: <unknown location>:-1
```
https://dev-files.blender.org/file/data/rgzrrrxortypg4ttejjn/PHID-FILE-fwdg3nicpuq5vj5fx7r6/preview-step_2.jpg
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{F8299051}
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Same issue happened to "Light Paths" preset:
"Add" should be "Delete", and Delete cause exception.
{F8299154}
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Hope Pasang Bomjan (irex124) don't close this task in a hurry, and give other people some time to test and confirm this bug.