Ports/libfuse: Don't blanket-disable options we don't support

There's no need to do this, and this actually creates more informative
errors when we encounter an unsupported options, since it'll be our
own fusermount utility that complains rather than a library routine
inside libfuse.

Author: implicitfield

Ports/libfuse/patches/0001-Disable-unsupported-functionality.patch

@@ -133,26 +133,7 @@ index 73abc67..666be7f 100644
  #include <stdio.h>
  #include <stdlib.h>
  #include <unistd.h>
-@@ -50,6 +54,10 @@ struct mount_opts {
- static const struct fuse_opt fuse_mount_opts[] = {
- 	{ "allow_other", offsetof(struct mount_opts, allow_other), 1 },
- 	{ "max_read=%u", offsetof(struct mount_opts, max_read), 1 },
-+#ifdef __serenity__
-+	FUSE_DUAL_OPT_KEY("allow_other",	KEY_KERN),
-+	FUSE_OPT_KEY("max_read=",		KEY_KERN),
-+#else
- 	FUSE_OPT_KEY("-r",			KEY_RO),
- 	/* standard FreeBSD mount options */
- 	FUSE_DUAL_OPT_KEY("dev",		KEY_KERN),
-@@ -95,6 +103,7 @@ static const struct fuse_opt fuse_mount_opts[] = {
- 	 * handle them
- 	 */
- 	FUSE_OPT_KEY("fsname=",			KEY_KERN),
-+#endif
- 	FUSE_OPT_END
- };
- 
-@@ -115,10 +124,12 @@ static int fuse_mount_opt_proc(void *data, const char *arg, int key,
+@@ -115,10 +119,12 @@ static int fuse_mount_opt_proc(void *data, const char *arg, int key,
  	struct mount_opts *mo = data;
 
  	switch (key) {
@@ -165,7 +146,7 @@ index 73abc67..666be7f 100644
  	case KEY_KERN:
  		return fuse_opt_add_opt(&mo->kernel_opts, arg);
  	}
-@@ -130,12 +141,19 @@ static int fuse_mount_opt_proc(void *data, const char *arg, int key,
+@@ -130,12 +136,19 @@ static int fuse_mount_opt_proc(void *data, const char *arg, int key,
  void fuse_kern_unmount(const char *mountpoint, int fd)
  {
  	close(fd);
@@ -185,7 +166,7 @@ index 73abc67..666be7f 100644
  	unsigned ibg;
  	size_t len;
 
-@@ -145,6 +163,7 @@ static int init_backgrounded(void)
+@@ -145,6 +158,7 @@ static int init_backgrounded(void)
  		return 0;
 
  	return ibg;