minor #9542 [Form] Removed Integer scale option (dlabouesse)

This PR was squashed before being merged into the 2.7 branch (closes #9542).

Discussion
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[Form] Removed Integer scale option

Scale option is hardcoded for IntegerType.
These changes result from the discussion introduced by symfony/symfony#26734.

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Commits
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2f61f75 [Form] Removed Integer scale option

Author: javiereguiluz

reference/forms/types/integer.rst

@@ -17,11 +17,10 @@ integers. By default, all non-integer values (e.g. 6.78) will round down
 | Rendered as | ``input`` ``number`` field                                            |
 +-------------+-----------------------------------------------------------------------+
 | Options     | - `grouping`_                                                         |
-|             | - `scale`_                                                            |
 |             | - `rounding_mode`_                                                    |
 +-------------+-----------------------------------------------------------------------+
 | Overridden  | - `compound`_                                                         |
-| options     |                                                                       |
+| options     | - `scale`_                                                            |
 +-------------+-----------------------------------------------------------------------+
 | Inherited   | - `data`_                                                             |
 | options     | - `disabled`_                                                         |
@@ -47,8 +46,6 @@ Field Options
 
 .. include:: /reference/forms/types/options/grouping.rst.inc
 
-.. include:: /reference/forms/types/options/scale.rst.inc
-
 rounding_mode
 ~~~~~~~~~~~~~
 
@@ -83,6 +80,13 @@ Overridden Options
 
 .. include:: /reference/forms/types/options/compound_type.rst.inc
 
+scale
+~~~~~
+
+**type**: ``integer`` **default**: ``0``
+
+This specifies how many decimals will be allowed until the field rounds the submitted value (via ``rounding_mode``). This option inherits from :doc:`number </reference/forms/types/number>` type and is overriden to ``0`` for ``IntegerType``.
+
 Inherited Options
 -----------------
 

reference/forms/types/number.rst

@@ -42,7 +42,19 @@ Field Options
 
 .. include:: /reference/forms/types/options/grouping.rst.inc
 
-.. include:: /reference/forms/types/options/scale.rst.inc
+scale
+~~~~~
+
+.. versionadded:: 2.7
+    The ``scale`` option was introduced in Symfony 2.7. Prior to Symfony 2.7,
+    it was known as ``precision``.
+
+**type**: ``integer`` **default**: Locale-specific (usually around ``3``)
+
+This specifies how many decimals will be allowed until the field rounds
+the submitted value (via ``rounding_mode``). For example, if ``scale`` is set
+to ``2``, a submitted value of ``20.123`` will be rounded to, for example,
+``20.12`` (depending on your `rounding_mode`_).
 
 rounding_mode
 ~~~~~~~~~~~~~