Fix vestigial references to warn! macro

This macro was removed some time ago (and moved to doom-doctor). Where
necessary, these warnings have been moved to that module's doctor.el
file.

modules/app/write/doctor.el

@@ -0,0 +1,6 @@
+;;; app/write/doctor.el -*- lexical-binding: t; -*-
+
+(when (featurep! +langtool)
+  (require 'langtool)
+  (unless (file-exists-p langtool-language-tool-jar)
+    (warn! "Couldn't find languagetool-commandline.jar")))

modules/lang/csharp/config.el

@@ -11,10 +11,6 @@
   (setq omnisharp-auto-complete-want-documentation nil
         omnisharp-cache-directory (concat doom-cache-dir "omnisharp"))
   :config
-  (let ((omnisharp-bin (or omnisharp-server-executable-path (omnisharp--server-installation-path t))))
-    (unless (file-exists-p omnisharp-bin)
-      (warn! "Omnisharp server isn't installed, completion won't work")))
-
   (add-hook! csharp-mode #'(flycheck-mode omnisharp-mode))
 
   (defun +csharp|cleanup-omnisharp-server ()

modules/lang/csharp/doctor.el

@@ -0,0 +1,6 @@
+;;; lang/csharp/doctor.el -*- lexical-binding: t; -*-
+
+(require 'omnisharp)
+(let ((omnisharp-bin (or omnisharp-server-executable-path (omnisharp--server-installation-path t))))
+  (unless (file-exists-p omnisharp-bin)
+    (warn! "Omnisharp server isn't installed, completion won't work")))

modules/lang/java/config.el

@@ -3,9 +3,9 @@
 (add-hook 'java-mode-hook #'rainbow-delimiters-mode)
 
 (cond ((featurep! +meghanada) (load! +meghanada))
-      ((featurep! +eclim) ; FIXME lang/java +eclim
-       ;;(load! +eclim)
-       (warn! "Eclim support isn't implemented yet")))
+      ;; TODO lang/java +eclim
+      ;; ((featurep! +eclim) (load! +eclim))
+      )
 
 
 ;;