How to export .dft to .dwg without generating .bmp file.
Solution
If you used 'Insert Image' to place an image in a draft document, a bitmap (.bmp) file will be created in addition to the dxf/dwg file upon translation to dxf/dwg. This is by design. However, you can use 'Insert Object' if you do not wish to create a .bmp file.
Notes and References
Hardware/Software Configuration
Platform: INTL64
OS: windows
OS Version: n/a
Product: SOLID_EDGE
Application: TRANSLATORS
Version: V220.0
Function: AUTOCAD
Ref: 001-9886016