docs: drop "xx.vim" syntax help-tags neovim#35623

Problem:
These "foo.vim" syntax tags add 100+ useless tags to help. In
particular, "progress.vim" is the first match for "progress", which not
the result anyone is actually looking for, since Nvim 0.12 gained the
"progress-message" feature.

Solution:
Drop the "foo.vim" syntax tags. The "ft-foo" tags are more appropriately
named.

Author: justinmk

runtime/doc/ft_ada.txt

@@ -3,27 +3,12 @@
 
 		    ADA FILE TYPE PLUG-INS REFERENCE MANUAL~
 
-ADA								      *ada.vim*
-
-1.  Syntax Highlighting			    |ft-ada-syntax|
-2.  File type Plug-in			    |ft-ada-plugin|
-3.  Omni Completion			    |ft-ada-omni|
-    3.1 Omni Completion with "gnat xref"	|gnat-xref|
-    3.2 Omni Completion with "ctags"		|ada-ctags|
-4.  Compiler Support			    |ada-compiler|
-    4.1 GNAT					|compiler-gnat|
-    4.2 Dec Ada					|compiler-decada|
-5.  References				    |ada-reference|
-    5.1 Options					|ft-ada-options|
-    5.2 Commands				|ft-ada-commands|
-    5.3 Variables				|ft-ada-variables|
-    5.4 Constants				|ft-ada-constants|
-    5.5 Functions				|ft-ada-functions|
-6.  Extra Plug-ins			    |ada-extra-plugins|
+ADA								*ft-ada-syntax*
+
+                                      Type |gO| to see the table of contents.
 
 ==============================================================================
 1. Syntax Highlighting ~
-							       *ft-ada-syntax*
 
 This mode is designed for the 2005 edition of Ada ("Ada 2005"), which includes
 support for objected-programming, protected types, and so on.  It handles code

runtime/doc/ft_sql.txt

@@ -8,27 +8,7 @@ The Structured Query Language (SQL) is a standard which specifies statements
 that allow a user to interact with a relational database.  Vim includes
 features for navigation, indentation and syntax highlighting.
 
-1. Navigation					|sql-navigation|
-    1.1 Matchit					|sql-matchit|
-    1.2 Text Object Motions			|sql-object-motions|
-    1.3 Predefined Object Motions		|sql-predefined-objects|
-    1.4 Macros					|sql-macros|
-2. SQL Dialects					|sql-dialects|
-    2.1 SQLSetType				|SQLSetType|
-    2.2 SQLGetType				|SQLGetType|
-    2.3 SQL Dialect Default			|sql-type-default|
-3. Adding new SQL Dialects			|sql-adding-dialects|
-4. OMNI SQL Completion				|sql-completion|
-    4.1 Static mode				|sql-completion-static|
-    4.2 Dynamic mode				|sql-completion-dynamic|
-    4.3 Tutorial				|sql-completion-tutorial|
-	4.3.1 Complete Tables			|sql-completion-tables|
-	4.3.2 Complete Columns			|sql-completion-columns|
-	4.3.3 Complete Procedures		|sql-completion-procedures|
-	4.3.4 Complete Views			|sql-completion-views|
-    4.4 Completion Customization		|sql-completion-customization|
-    4.5 SQL Maps				|sql-completion-maps|
-    4.6 Using with other filetypes		|sql-completion-filetypes|
+                                      Type |gO| to see the table of contents.
 
 ==============================================================================
 1. Navigation					*sql-navigation*