Revert "Merge pull request #410 from bazukas/nix-modules"

This reverts commit 92d800cc1839cd8a86084a954ea115d8207449f8, reversing
changes made to 35a4acede07ad260832b8f34bb074d4c0a368bcb.

These commits were originally added to allow multiple user interfaces to
use the same plugins, but I soon realized that multiple user interfaces
can use multiple libobs versions, so each user interface should have its
own set of plugins to manage.  Some user interfaces may not wish to use
certain plugins anyway, so this fixes that issue as well.

libobs/obs-nix.c

@@ -51,23 +51,8 @@ static const int module_patterns_size =
 
 void add_default_module_paths(void)
 {
-	char bin[512];
-	char data[512];
-	int ret;
-
 	for (int i = 0; i < module_patterns_size; i++)
 		obs_add_module_path(module_bin[i], module_data[i]);
-
-	ret = os_get_config_path(bin, sizeof(bin), "obs-plugins/%module%");
-	if (ret <= 0)
-		return;
-
-	strcpy(data, bin);
-	strcat(data, "/data");
-
-	strcat(bin, "/bin/");
-
-	obs_add_module_path(bin, data);
 }
 
 /*