Fix variable initialization and reference order in ipadapter_execute

[zechsmerquis]

This PR fixes potential UnboundLocalError issues in the ipadapter_execute function by:

1. Initializing all variables at the start of the function:

   • img_comp_cond_embeds
   • face_cond_embeds
   • cond
   • uncond
   • cond_comp
   • cond_alt
   • img_cond_embeds
   • img_uncond_embeds

2. Fixing variable reference order to ensure variables are properly initialized before use

3. Removing unused parameters:

   • weight_kolors
   • style_boost
   • composition_boost
   • enhance_tiles
   • enhance_ratio

The changes have been tested with various IPAdapter models and no UnboundLocalError exceptions occur. Memory management is also improved while maintaining functionality.