refactor!: remove 'remap' option

An option that should always be kept on except for when working with old
Vi scripts is of little use to us.

runtime/doc/map.txt

@@ -796,9 +796,8 @@ command.  For example: >
    :noremap j k
 This will exchange the cursor up and down commands.
 
-With the normal :map command, when the 'remap' option is on, mapping takes
-place until the text is found not to be a part of a {lhs}.  For example, if
-you use: >
+With the normal :map command mapping takes place until the text is found not
+to be a part of a {lhs}.  For example, if you use: >
    :map x y
    :map y x
 Vim will replace x with y, and then y with x, etc.  When this has happened

runtime/doc/options.txt

@@ -4800,15 +4800,6 @@ A jump table for the options with a short description can be found at |Q_op|.
 	'number', see |number_relativenumber| for all combinations of the two
 	options.
 
-						*'remap'* *'noremap'*
-'remap'			boolean	(default on)
-			global
-	Allows for mappings to work recursively.  If you do not want this for
-	a single entry, use the :noremap[!] command.
-	NOTE: To avoid portability problems with Vim scripts, always keep
-	this option at the default "on".  Only switch it off when working with
-	old Vi scripts.
-
 						*'report'*
 'report'		number	(default 2)
 			global

runtime/doc/quickref.txt

@@ -824,7 +824,6 @@ Short explanation of each option:		*option-list*
 'redrawtime'	  'rdt'     timeout for 'hlsearch' and |:match| highlighting
 'regexpengine'	  're'	    default regexp engine to use
 'relativenumber'  'rnu'	    show relative line number in front of each line
-'remap'			    allow mappings to work recursively
 'report'		    threshold for reporting nr. of lines changed
 'revins'	  'ri'	    inserting characters will work backwards
 'rightleft'	  'rl'	    window is right-to-left oriented

runtime/doc/vim_diff.txt

@@ -548,6 +548,7 @@ Options:
   'maxmemtot' Nvim delegates memory-management to the OS.
   'maxcombine' (6 is always used)
   *'prompt'* *'noprompt'*
+  *'remap'* *'noremap'*
   *'restorescreen'* *'rs'* *'norestorescreen'* *'nors'*
   'shelltype'
   *'shortname'* *'sn'* *'noshortname'* *'nosn'*

runtime/optwin.vim

@@ -956,7 +956,6 @@ call <SID>Header("mapping")
 call append("$", "maxmapdepth\tmaximum depth of mapping")
 call append("$", " \tset mmd=" . &mmd)
 call append("$", "remap\trecognize mappings in mapped keys")
-call <SID>BinOptionG("remap", &remap)
 call append("$", "timeout\tallow timing out halfway into a mapping")
 call <SID>BinOptionG("to", &to)
 call append("$", "ttimeout\tallow timing out halfway into a key code")

src/nvim/getchar.c

@@ -1881,8 +1881,7 @@ static int handle_mapping(int *keylenp, bool *timedout, int *mapdepth)
   if (no_mapping == 0 && maphash_valid
       && (no_zero_mapping == 0 || tb_c1 != '0')
       && (typebuf.tb_maplen == 0 || is_plug_map
-          || (p_remap
-              && !(typebuf.tb_noremap[typebuf.tb_off] & (RM_NONE|RM_ABBR))))
+          || (!(typebuf.tb_noremap[typebuf.tb_off] & (RM_NONE|RM_ABBR))))
       && !(p_paste && (State & (MODE_INSERT | MODE_CMDLINE)))
       && !(State == MODE_HITRETURN && (tb_c1 == CAR || tb_c1 == ' '))
       && State != MODE_ASKMORE

src/nvim/option_defs.h

@@ -557,7 +557,6 @@ static char *(p_rdb_values[]) = {
 #define RDB_NODELTA            0x008
 
 EXTERN long p_rdt;              // 'redrawtime'
-EXTERN int p_remap;             // 'remap'
 EXTERN long p_re;               // 'regexpengine'
 EXTERN long p_report;           // 'report'
 EXTERN long p_pvh;              // 'previewheight'

src/nvim/options.lua

@@ -1911,9 +1911,9 @@ return {
     },
     {
       full_name='remap',
-      short_desc=N_("mappings to work recursively"),
+      short_desc=N_("No description"),
       type='bool', scope={'global'},
-      varname='p_remap',
+      varname='p_force_on',
       defaults={if_true=true}
     },
     {