Remove ZoomRunnerPane in favor of FocusRunnerPane

The functionality was largely duplicated across the commands, and with
regard to naming, `FocusRunnerPane` better maps to how I use it.

Closes #35 - Unify Focus & Zoom runner pane functions

doc/vim-tmux-runner.txt

@@ -21,7 +21,6 @@ CONTENTS                                                        *vtr-contents*
         2.11 ............................... |VtrClearRunner|
         2.12 ............................... |VtrFlushCommand|
         2.13 ............................... |VtrSendCtrlD|
-        2.14 ............................... |VtrZoomRunnerPane|
       3. Configuration ................... |VTR-Configuration|
         3.1 ................................ |VtrPercentage|
         3.2 ................................ |VtrOrientation|
@@ -218,20 +217,6 @@ Send Ctrl-D key sequence to the runner without resetting the current command.
 This is useful if you are repeatedly running a script in the debugger and
 regularly need to kill the repl.
 
-------------------------------------------------------------------------------
-                                                            *VtrZoomRunnerPane*
-2.12 VtrZoomRunnerPane~
-
-Zoom the runner pane using the native zooming functionality from tmux 1.8.
-This will cause the runner pane to temporarily occupy the entire tmux window.
-This is useful for temporarily viewing the pane in a larger context, ie to see
-a long bracktrace.
-
-You can add the following mapping to your ~/.tmux.conf file to enable quick
-toggling of the zoom functionality:
-
-  bind C-p run "(tmux display-message -p '#{pane_current_command}' | grep -iqE '(^|\/)vim$' && tmux send-keys ':VtrZoomRunnerPane' 'C-m') || tmux select-pane -l"
-
 ==============================================================================
 CONFIGURATION (3)                                           *VTR-Configuration*
 

plugin/vim-tmux-runner.vim

@@ -121,14 +121,6 @@ function! s:FocusRunnerPane()
     call s:SendTmuxCommand("resize-pane -Z")
 endfunction
 
-function! s:ZoomRunnerPane()
-    if !s:RequireRunnerPane() | return | endif
-    let copy_mode_cmd = s:TargetedTmuxCommand("copy-mode", s:runner_pane)
-    let zoom_command = s:TargetedTmuxCommand("resize-pane -Z", s:runner_pane)
-    call s:SendTmuxCommand(copy_mode_cmd)
-    call s:SendTmuxCommand(zoom_command)
-endfunction
-
 function! s:Strip(string)
     return substitute(a:string, '^\s*\(.\{-}\)\s*\n\?$', '\1', '')
 endfunction
@@ -391,7 +383,6 @@ function! s:DefineCommands()
     command! VtrFlushCommand call s:FlushCommand()
     command! VtrSendCtrlD call s:SendCtrlD()
     command! VtrAttachToPane call s:PromptForRunnerToAttach()
-    command! VtrZoomRunnerPane call s:ZoomRunnerPane()
 endfunction
 
 function! s:DefineKeymaps()
@@ -407,7 +398,6 @@ function! s:DefineKeymaps()
         nnoremap <leader>dr :VtrDetachRunner<cr>
         nnoremap <leader>cr :VtrClearRunner<cr>
         nnoremap <leader>fc :VtrFlushCommand<cr>
-        nnoremap <leader>zr :VtrZoomRunnerPane<cr>
     endif
 endfunction