How to reproduce:
1. Create a new project or open an existing one
2. Navigate to Edit -> Project Settings -> Quality
3. Enable Soft Particles in Quality settings
4. Inspect the warning thrown under the Soft Particles field

Expected result: The warning says that Deferred Shading Rendering Path should be enabled
Actual result: The warning says that Deferred Lighting should be enabled

Reproduced with: 2017.4.31f1, 2018.4.5f1, 2019.1.13f1, 2019.2.0f1, 2019.3.0a11

Notes:
The warning can be misleading as it appears to refer to Legacy Deferred Lighting Rendering Path.
If the warning does not appear it means that either Deferred Shading Rendering Path is disabled or a Depth Texture is set as a Camera's Render Texture.