Revert "Add support for multi-user decryption"

This reverts commit 0b25b1d79b79bc4d45dfff2aaf575e10bd24ef2d.

Reason for revert: Changes need to be made to libtwrpfscrypt to include this patchset. Will cherry-pick this patch later and make necessary modifications.

Change-Id: I7601d7b820129709b05d9b4368573b6f1048de02
diff --git a/orscmd/orscmd.cpp b/orscmd/orscmd.cpp
index 0a12a08..c47c0f6 100644
--- a/orscmd/orscmd.cpp
+++ b/orscmd/orscmd.cpp
@@ -45,7 +45,7 @@
 	printf("  wipe <partition name>\n");
 	printf("  sideload\n");
 	printf("  set <variable> [value]\n");
-	printf("  decrypt <password> [USER ID]\n");
+	printf("  decrypt <password>\n");
 	printf("  remountrw\n");
 	printf("  fixperms\n");
 	printf("  mount <path>\n");