git-gui: Remove 'Allow Partially Added Files' option.

Now that we take the approach of core Git where we allow the user to
stage their changes directly into the index all of the time there is
absolutely no reason to have the Allow Partially Added Files option,
nor is there a reason or desire to default that option to false.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

git-gui.sh

@@ -524,24 +524,6 @@ proc rescan_done {fd buf after} {
 	prune_selection
 	unlock_index
 	display_all_files
-
-	if {$repo_config(gui.partialinclude) ne {true}} {
-		set pathList [list]
-		foreach path [array names file_states] {
-			switch -- [lindex $file_states($path) 0] {
-			A? -
-			M? {lappend pathList $path}
-			}
-		}
-		if {$pathList ne {}} {
-			update_index \
-				"Updating included files" \
-				$pathList \
-				[concat {reshow_diff;} $after]
-			return
-		}
-	}
-
 	reshow_diff
 	uplevel #0 $after
 }
@@ -918,27 +900,6 @@ A good commit message has the following format:
 		return
 	}
 
-	# -- Update included files if partialincludes are off.
-	#
-	if {$repo_config(gui.partialinclude) ne {true}} {
-		set pathList [list]
-		foreach path [array names file_states] {
-			switch -glob -- [lindex $file_states($path) 0] {
-			A? -
-			M? {lappend pathList $path}
-			}
-		}
-		if {$pathList ne {}} {
-			unlock_index
-			update_index \
-				"Updating included files" \
-				$pathList \
-				[concat {lock_index update;} \
-					[list commit_prehook $curHEAD $msg]]
-			return
-		}
-	}
-
 	commit_prehook $curHEAD $msg
 }
 
@@ -2939,7 +2900,6 @@ proc do_options {} {
 	pack $w.global -side right -fill both -expand 1 -pady 5 -padx 5
 
 	foreach option {
-		{b partialinclude {Allow Partially Added Files}}
 		{b pullsummary {Show Pull Summary}}
 		{b trustmtime  {Trust File Modification Timestamps}}
 		{i diffcontext {Number of Diff Context Lines}}
@@ -3299,7 +3259,6 @@ proc apply_config {} {
 
 set default_config(gui.trustmtime) false
 set default_config(gui.pullsummary) true
-set default_config(gui.partialinclude) false
 set default_config(gui.diffcontext) 5
 set default_config(gui.fontui) [font configure font_ui]
 set default_config(gui.fontdiff) [font configure font_diff]