runtime(vim): Cleanup :match and :loadkeymap syntax test files

Remove extraneous trailing whitespace from legacy script :loadkeymap
test file.

Remove :match *_99.dump test file.  These are no longer generated.

Signed-off-by: Doug Kearns <dougkearns@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/syntax/testdir/input/vim_keymap.vim b/runtime/syntax/testdir/input/vim_keymap.vim
index 424d437..029bc76 100644
--- a/runtime/syntax/testdir/input/vim_keymap.vim
+++ b/runtime/syntax/testdir/input/vim_keymap.vim
@@ -1,27 +1,24 @@
-" Vim Keymap file for syntax testing                                                                                                                                                                                                                                           
-                                                                                                                                       
-" Maintainer:   Doug Kearns <dougkearns@gmail.com>                                                                                     
-" Last Changed: 2023 Nov 21                                                                                                                                                                                                                                                    
-                                                                                                                                                                                                                                                                               
-scriptencoding utf-8                                                                                                                                                                                                                                                           
-                                                                                                                                       
-let b:keymap_name = "syntax-test"                                                                                                      
-                                                                                                                                                                                                                                                                               
-loadkeymap                                                                                                                                                                                                                                                                     
-                                                                                                                                                                                                                                                                               
-" Line comment                                                                                                                         
-                                                                                                                                       
-  " Another line comment                
-                                                                                                                                       
-a A    Basic mapping                                       
-'a á   More than one char in first column           
-                                          
-" Special notation                                                                                                                     
-<char-62>      B               Special notation allowed in LHS - decimal                                                                                                                                                                                                       
-c              <char-0103>     Special notation allowed in RHS - octal                                                                 
-<char-0x0064>  <char-0x0044>   Special notation allowed in LHS and RHS - hexadecimal                                                   
-                                         
-" Vim-script comment characters                               
+" Vim Keymap file for syntax testing
+
+scriptencoding utf-8
+
+let b:keymap_name = "syntax-test"
+
+loadkeymap
+
+" Line comment
+
+  " Another line comment
+
+a A    Basic mapping
+'a á   More than one char in first column
+
+" Special notation
+<char-62>      B               Special notation allowed in LHS - decimal
+c              <char-0103>     Special notation allowed in RHS - octal
+<char-0x0064>  <char-0x0044>   Special notation allowed in LHS and RHS - hexadecimal
+
+" Vim-script comment characters
 # <char-0x00a3>                Line should not match as a Vim9-script comment
-\" “                           Line should not match as a legacy-script comment 
+\" “                           Line should not match as a legacy-script comment
 : "                            Line should not match as a legacy-script comment