Revert "feat(#2349): add "right_align" option for renderer.icons.*_placement (#2839)"

This reverts commit 1d629a5d3f.

doc/nvim-tree-lua.txt

@@ -944,12 +944,6 @@ Configuration options for icons.
 Icon order and sign column precedence:
   git < modified < bookmarked < diagnostics
 
-`renderer.icons.*_placement` options may be:
-- `"before"` : before file/folder, after the file/folders icons
-- `"after"` : after file/folder
-- `"signcolumn"` : far left, requires |nvim-tree.view.signcolumn| enabled
-- `"right_align"` : far right
-
     *nvim-tree.renderer.icons.web_devicons*
     Configure optional plugin `"nvim-tree/nvim-web-devicons"`
 
@@ -978,19 +972,27 @@ Icon order and sign column precedence:
               Type: `boolean`, Default: `true`
 
     *nvim-tree.renderer.icons.git_placement*
-    Git icons placement.
+    Place where the git icons will be rendered.
+    Can be `"after"` or `"before"` filename (after the file/folders icons)
+    or `"signcolumn"` (requires |nvim-tree.view.signcolumn| enabled).
       Type: `string`, Default: `"before"`
 
     *nvim-tree.renderer.icons.diagnostics_placement*
-    Diganostic icon placement.
+    Place where the diagnostics icon will be rendered.
+    Can be `"after"` or `"before"` filename (after the file/folders icons)
+    or `"signcolumn"` (requires |nvim-tree.view.signcolumn| enabled).
       Type: `string`, Default: `"signcolumn"`
 
     *nvim-tree.renderer.icons.modified_placement*
-    Modified icon placement.
+    Place where the modified icon will be rendered.
+    Can be `"after"` or `"before"` filename (after the file/folders icons)
+    or `"signcolumn"` (requires |nvim-tree.view.signcolumn| enabled).
       Type: `string`, Default: `"after"`
 
     *nvim-tree.renderer.icons.bookmarks_placement*
-    Bookmark icon placement.
+    Place where the bookmarks icon will be rendered.
+    Can be `"after"` or `"before"` filename (after the file/folders icons)
+    or `"signcolumn"` (requires |nvim-tree.view.signcolumn| enabled).
       Type: `string`, Default: `signcolumn`
 
     *nvim-tree.renderer.icons.padding*