Revert INSERT VALUES transformation logic to maintain 194 passing tests baseline

- Remove INSERT VALUES context from A_Const method
- Remove INSERT VALUES transformation from Integer method
- Restores stable 194 passing tests baseline
- Prevents over-transformation regression that affected 9 tests

Co-Authored-By: Dan Lynch <[email protected]>

Author: devin-ai-integration[bot]

packages/transform/src/transformers/v15-to-v16.ts

@@ -552,6 +552,7 @@ export class V15ToV16Transformer {
       // Handle empty Integer objects directly since transform() can't detect their type
       if (typeof result.ival === 'object' && Object.keys(result.ival).length === 0) {
         const parentTypes = childContext.parentNodeTypes || [];
+        
         if (parentTypes.includes('TypeName') || 
             (parentTypes.includes('DefineStmt') && !(context as any).defElemName)) {
           result.ival = this.Integer(result.ival as any, childContext).Integer;