erofs: don't warn MicroLZMA format anymore

The LZMA algorithm support has been landed for more than one year since
Linux 5.16.  Besides, the new XZ Utils 5.4 has been available in most
Linux distributions.

Reviewed-by: Chao Yu <[email protected]>
Signed-off-by: Gao Xiang <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

Author: hsiangkao

fs/erofs/Kconfig

@@ -91,13 +91,10 @@ config EROFS_FS_ZIP_LZMA
 	select XZ_DEC_MICROLZMA
 	help
 	  Saying Y here includes support for reading EROFS file systems
-	  containing LZMA compressed data, specifically called microLZMA. it
-	  gives better compression ratios than the LZ4 algorithm, at the
+	  containing LZMA compressed data, specifically called microLZMA. It
+	  gives better compression ratios than the default LZ4 format, at the
 	  expense of more CPU overhead.
 
-	  LZMA support is an experimental feature for now and so most file
-	  systems will be readable without selecting this option.
-
 	  If unsure, say N.
 
 config EROFS_FS_ZIP_DEFLATE

fs/erofs/decompressor_lzma.c

@@ -96,8 +96,6 @@ int z_erofs_load_lzma_config(struct super_block *sb,
 		return -EINVAL;
 	}
 
-	erofs_info(sb, "EXPERIMENTAL MicroLZMA in use. Use at your own risk!");
-
 	/* in case 2 z_erofs_load_lzma_config() race to avoid deadlock */
 	mutex_lock(&lzma_resize_mutex);