Remove incorrect less subcommand definition (#1200)

Fixes #1199

The `less` completions currently include a subcommand `"less 0 1 2 3 4 5
6 7 8 9 10 11 12 13 14 15 16 17 18 19"`. This subcommand definition has
all the same flags as the definition for `less` (expect for `--shift`).
This subcommand exists because these completions were generated from the
[Fish
ones](https://github.com/fish-shell/fish-shell/tree/master/share/completions/less.fish),
and for some reason, the Fish completions add arguments like `1 2 3 ...`
to some of the `less` commands.

This PR just gets rid of that subcommand.

Author: ysthakur

custom-completions/less/less-completions.nu

@@ -41,45 +41,3 @@ extern "less" [
 	# --shift(-#)					# Characters to scroll on left/right arrows
 	...args
 ]
-
-# Characters to scroll on left/right arrows
-extern "less 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19" [
-	--help(-?)					# Display help and exit
-	--search-skip-screen(-a)					# Search after end of screen
-	--auto-buffers(-B)					# Disable automatic buffer allocation
-	--clear-screen(-c)					# Repaint from top
-	--CLEAR-SCREEN(-C)					# Clear and repaint from top
-	--dumb(-d)					# Suppress error for lacking terminal capability
-	--quit-at-eof(-e)					# Exit on second EOF
-	--QUIT-AT-EOF(-E)					# Exit on EOF
-	--force(-f)					# Open non-regular files
-	--quit-if-one-screen(-F)					# Quit if file shorter than one screen
-	--hilite-search(-g)					# Highlight one search target
-	--HILITE-SEARCH(-G)					# No search highlighting
-	--ignore-case(-i)					# Search ignores lowercase case
-	--IGNORE-CASE(-I)					# Search ignores all case
-	--status-column(-J)					# Display status column
-	--no-lessopen(-L)					# Ignore $LESSOPEN
-	--long-prompt(-m)					# Prompt with percentage
-	--LONG-PROMPT(-M)					# Verbose prompt
-	--line-numbers(-n)					# Display line number
-	--LINE-NUMBERS(-N)					# Display line number for each line
-	--quiet(-q)					# Silent mode
-	--silent					# Silent mode
-	--QUIET(-Q)					# Completely silent mode
-	--SILENT					# Completely silent mode
-	--raw-control-chars(-r)					# Display control chars
-	--RAW-CONTROL-CHARS(-R)					# Display control chars, guess screen appearance
-	--squeeze-blank-lines(-s)					# Multiple blank lines sqeezed
-	--chop-long-lines(-S)					# Do not fold long lines
-	--underline-special(-u)					# Allow backspace and carriage return
-	--UNDERLINE-SPECIAL(-U)					# Allow backspace, tab and carriage return
-	--version(-V)					# Display version and exit
-	--hilite-unread(-w)					# Highlight first unread line on new page
-	--HILITE-UNREAD(-W)					# Highlight first unread line on any movement
-	--no-init(-X)					# No termcap init
-	--no-keypad					# No keypad init
-	--tilde(-~)					# Lines after EOF are blank
-	# --shift(-#)					# Characters to scroll on left/right arrows
-	...args
-]