submitのdivを消す
$this->Form->setTemplates(['submitContainer' => '{{content}}']);submitの場合はsubmitContainerにデフォルトで↓のようなテンプレートがついているので、
{{content}}だけにするとdivが消えます。
'submitContainer' => '<div class="submit">{{content}}</div>',FormHelper.phpに載っているテンプレート
// Used for button elements in button().
'button' => '<button{{attrs}}>{{text}}</button>',
// Used for checkboxes in checkbox() and multiCheckbox().
'checkbox' => '<input type="checkbox" name="{{name}}" value="{{value}}"{{attrs}}>',
// Input group wrapper for checkboxes created via control().
'checkboxFormGroup' => '{{label}}',
// Wrapper container for checkboxes.
'checkboxWrapper' => '<div class="checkbox">{{label}}</div>',
// Error message wrapper elements.
'error' => '<div class="error-message">{{content}}</div>',
// Container for error items.
'errorList' => '<ul>{{content}}</ul>',
// Error item wrapper.
'errorItem' => '<li>{{text}}</li>',
// File input used by file().
'file' => '<input type="file" name="{{name}}"{{attrs}}>',
// Fieldset element used by allControls().
'fieldset' => '<fieldset{{attrs}}>{{content}}</fieldset>',
// Open tag used by create().
'formStart' => '<form{{attrs}}>',
// Close tag used by end().
'formEnd' => '</form>',
// General grouping container for control(). Defines input/label ordering.
'formGroup' => '{{label}}{{input}}',
// Wrapper content used to hide other content.
'hiddenBlock' => '<div style="display:none;">{{content}}</div>',
// Generic input element.
'input' => '<input type="{{type}}" name="{{name}}"{{attrs}}/>',
// Submit input element.
'inputSubmit' => '<input type="{{type}}"{{attrs}}/>',
// Container element used by control().
'inputContainer' => '<div class="input {{type}}{{required}}">{{content}}</div>',
// Container element used by control() when a field has an error.
'inputContainerError' => '<div class="input {{type}}{{required}} error">{{content}}{{error}}</div>',
// Label element when inputs are not nested inside the label.
'label' => '<label{{attrs}}>{{text}}</label>',
// Label element used for radio and multi-checkbox inputs.
'nestingLabel' => '{{hidden}}<label{{attrs}}>{{input}}{{text}}</label>',
// Legends created by allControls()
'legend' => '<legend>{{text}}</legend>',
// Multi-Checkbox input set title element.
'multicheckboxTitle' => '<legend>{{text}}</legend>',
// Multi-Checkbox wrapping container.
'multicheckboxWrapper' => '<fieldset{{attrs}}>{{content}}</fieldset>',
// Option element used in select pickers.
'option' => '<option value="{{value}}"{{attrs}}>{{text}}</option>',
// Option group element used in select pickers.
'optgroup' => '<optgroup label="{{label}}"{{attrs}}>{{content}}</optgroup>',
// Select element,
'select' => '<select name="{{name}}"{{attrs}}>{{content}}</select>',
// Multi-select element,
'selectMultiple' => '<select name="{{name}}[]" multiple="multiple"{{attrs}}>{{content}}</select>',
// Radio input element,
'radio' => '<input type="radio" name="{{name}}" value="{{value}}"{{attrs}}>',
// Wrapping container for radio input/label,
'radioWrapper' => '{{label}}',
// Textarea input element,
'textarea' => '<textarea name="{{name}}"{{attrs}}>{{value}}</textarea>',
// Container for submit buttons.
'submitContainer' => '<div class="submit">{{content}}</div>',
// Confirm javascript template for postLink()
'confirmJs' => '{{confirm}}',
// selected class
'selectedClass' => 'selected',