docs: remove false breaking change about PreModel definition getter (never published)

Author: ocots

BREAKING.md

@@ -32,30 +32,6 @@ The old function names were misleading because they returned the dimension of du
 
 The functions `dim_*_constraints_box(ocp::Model)` (for Model, not Solution) remain unchanged and still refer to constraint dimension in the model.
 
-### Breaking Changes: Definition Getter Removal on PreModel
-
-The `definition` and `expression` getters on `PreModel` have been removed to maintain consistency with the rest of the codebase where `PreModel` fields are accessed directly.
-
-#### Migration Guide
-
-```julia
-# Before (removed getters)
-d = definition(pre)          # No longer available
-e = expression(pre)          # No longer available
-
-# After (direct field access)
-d = pre.definition            # Access the field directly
-e = expression(pre.definition) # Pass the definition to expression()
-```
-
-#### Rationale
-
-The removal aligns with the existing pattern in CTModels where `PreModel` fields are accessed directly (e.g., `pre.state`, `pre.control`, `pre.variable`) rather than through getter functions. Getters on `Model` remain unchanged.
-
-#### Note
-
-The `definition(ocp::Model)` and `expression(ocp::Model)` getters remain available and unchanged. Only the `PreModel` variants were removed.
-
 ### Non-Breaking Changes
 
 This release also introduces consistent variable and control checking functions without breaking existing functionality:

CHANGELOG.md

@@ -60,11 +60,6 @@ expr = expression(pre.definition)  # Returns the Expr
 model = build(pre)  # Works even without definition
 ```
 
-#### Breaking Changes
-
-- **PreModel getters removed**: `definition(pre::PreModel)` and `expression(pre::PreModel)` removed; use `pre.definition` and `expression(pre.definition)` instead
-- **Model getters unchanged**: `definition(model::Model)` and `expression(model::Model)` remain available
-
 #### Consistent Variable and Control Checking Functions
 
 - **New functions**: Added `is_variable()` and `is_control_free()` for checking problem properties