Make doom-project-{p,root} functions simpler

+ doom-project-root and doom-project-p no longer takes arguments
+ Remove doom*project-root advice

core/autoload/buffers.el

@@ -53,7 +53,7 @@ Inspired from http://demonastery.org/2013/04/emacs-evil-narrow-region/"
 
 If no project is active, return all buffers."
   (let ((buffers (doom-buffer-list)))
-    (if-let (project-root (doom-project-root t))
+    (if-let (project-root (if (doom-project-p) (doom-project-root)))
         (cl-loop for buf in buffers
                  if (projectile-project-buffer-p buf project-root)
                  collect buf)

core/core-projects.el

@@ -63,22 +63,17 @@ state are passed in.")
   (dolist (fn projectile-project-root-files-functions)
     (remhash (format "%s-%s" fn default-directory) projectile-project-root-cache)))
 
-(defun doom-project-p (&optional strict-p)
+(defun doom-project-p ()
   "Whether or not this buffer is currently in a project or not."
-  (let ((projectile-require-project-root strict-p))
+  (let ((projectile-require-project-root t))
     (projectile-project-p)))
 
-(defun doom-project-root (&optional strict-p)
+(defun doom-project-root ()
   "Get the path to the root of your project.
 If STRICT-P, return nil if no project was found, otherwise return
 `default-directory'."
-  (let ((projectile-require-project-root strict-p))
-    (ignore-errors (projectile-project-root))))
-
-(defun doom*project-root (&rest _)
-  "An advice function used to replace project-root-detection functions in other
-libraries."
-  (doom-project-root))
+  (let (projectile-require-project-root)
+    (projectile-project-root)))
 
 (defmacro doom-project-has! (files)
   "Checks if the project has the specified FILES, relative to the project root,