Remove invalid parameters for `InputDecoration.collapsed`

InputDecoration.collapsed invalid parameters floatingLabelBehavior and floatingLabelAlignment are deprecated.

InputDecoration.collapsed constructor is used to create a minimal decoration without a label.

The parameters floatingLabelAlignment and floatingLabelBehavior have no effect because an input decoration created using InputDecoration.collapsed has no label.

To migrate, remove usage of floatingLabelBehavior and floatingLabelAlignment parameters when calling the InputDecoration.collapsed constructor. Those parameters had no effect.

Code before migration:

InputDecoration.collapsed(
  hintText: 'Hint',
  floatingLabelAlignment: FloatingLabelAlignment.center,
  floatingLabelBehavior: FloatingLabelBehavior.auto,
),

Code after migration:

InputDecoration.collapsed(
  hintText: 'Hint',
),

Landed in version: 3.24.0-0.1.pre
In stable release: 3.27.0

API documentation:

• InputDecoration.collapsed
• InputDecoration.floatingLabelAlignment
• InputDecoration.floatingLabelBehavior

Relevant issues:

• Add prefixIcon and suffixIcon parameters to InputDecoration.collapsed

Relevant PRs:

• Deprecate invalid InputDecoration.collapsed parameters
• Cleanup InputDecoration.collapsed constructor

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