fix(form-core): Remove early canSubmit check in _handleSubmit (#1990)

- Remove stale canSubmit check that prevented onSubmitInvalid from being called
- On first render, canSubmit was true even with invalid default values
- Proper validation checks after this point correctly handle onSubmitInvalid
- Fixes: onSubmitInvalid not called when form is invalid with default values

Author: Dhavanesh24cs412

packages/form-core/src/FormApi.ts

@@ -2066,15 +2066,6 @@ export class FormApi<
     const submitMetaArg =
       submitMeta ?? (this.options.onSubmitMeta as TSubmitMeta)
 
-    if (!this.state.canSubmit && !this._devtoolsSubmissionOverride) {
-      this.options.onSubmitInvalid?.({
-        value: this.state.values,
-        formApi: this,
-        meta: submitMetaArg,
-      })
-      return
-    }
-
     this.baseStore.setState((d) => ({ ...d, isSubmitting: true }))
 
     const done = () => {