Remove unnecessary preferences pages with a single rule

Author: mavasani

docs/fundamentals/code-analysis/style-rules/ide0060.md

@@ -22,7 +22,7 @@ dev_langs:
 | **Rule ID** | IDE0060 |
 | **Title** | Remove unused parameter |
 | **Category** | Style |
-| **Subcategory** | Language rules (null-checking preferences) |
+| **Subcategory** | Language rules (parameter preferences) |
 
 ## Overview
 
@@ -75,6 +75,5 @@ End Function
 
 ## See also
 
-- [Null-checking preferences](null-checking-preferences.md)
 - [Code style language rules](language-rules.md)
 - [Code style rules reference](index.md)

docs/fundamentals/code-analysis/style-rules/ide0065.md

@@ -57,6 +57,5 @@ namespace Conventions
 
 ## See also
 
-- ['using' directive preferences](using-directive-preferences.md)
 - [Code style language rules](language-rules.md)
 - [Code style rules reference](index.md)

docs/fundamentals/code-analysis/style-rules/language-rules.md

@@ -73,7 +73,7 @@ The style rules in this section are applicable to both C# and Visual Basic.
   - [dotnet_style_coalesce_expression](ide0029.md#dotnet_style_coalesce_expression)
   - [dotnet_style_null_propagation](ide0031.md#dotnet_style_null_propagation)
   - [dotnet_style_prefer_is_null_check_over_reference_equality_method](ide0041.md#dotnet_style_prefer_is_null_check_over_reference_equality_method)
-- [Parameter preferences](parameter-preferences.md)
+- [Parameter preferences](ide0060.md)
   - [dotnet_code_quality_unused_parameters](ide0060.md#dotnet_code_quality_unused_parameters)
 
 ## C# style rules
@@ -110,7 +110,7 @@ The style rules in this section are applicable to C# language only.
 - [Code block preferences](code-block-preferences.md)
   - [csharp_prefer_braces](ide0011.md#csharp_prefer_braces)
   - [csharp_prefer_simple_using_statement](ide0063.md#csharp_prefer_simple_using_statement)
-- ['using' directive preferences](using-directive-preferences.md)
+- ['using' directive preferences](ide0065.md)
   - [csharp_using_directive_placement](ide0065.md#csharp_using_directive_placement)
 - [Modifier preferences](modifier-preferences.md#c-modifier-preferences)
   - [csharp_prefer_static_local_function](ide0062.md#csharp_prefer_static_local_function)

docs/fundamentals/code-analysis/style-rules/parameter-preferences.md

@@ -1018,8 +1018,6 @@ items:
               href: code-analysis/style-rules/ide1005.md
           - name: Parameter preferences
             items:
-            - name: Overview
-              href: code-analysis/style-rules/parameter-preferences.md
             - name: IDE0060
               href: code-analysis/style-rules/ide0060.md
           - name: var preferences
@@ -1066,8 +1064,6 @@ items:
               href: code-analysis/style-rules/ide0063.md
           - name: using directive preferences
             items:
-            - name: Overview
-              href: code-analysis/style-rules/using-directive-preferences.md
             - name: IDE0065
               href: code-analysis/style-rules/ide0065.md
         - name: Formatting rules