Remove all references to FDE enable wipe

Bug: 64766105
Test: FBE boots, forceencrypt boots, set pattern, reboots, encryptable
      boots and can be encrypted
Change-Id: I8c6dc0acdc37c3a6f1bea28d5607ed8938a4eb0c
diff --git a/VoldNativeService.cpp b/VoldNativeService.cpp
index 9d8b990..f7637fd 100644
--- a/VoldNativeService.cpp
+++ b/VoldNativeService.cpp
@@ -554,22 +554,12 @@
         int32_t encryptionFlags) {
     bool noUi = (encryptionFlags & VoldNativeService::ENCRYPTION_FLAG_NO_UI) != 0;
 
-    std::string how;
-    if ((encryptionFlags & VoldNativeService::ENCRYPTION_FLAG_IN_PLACE) != 0) {
-        how = "inplace";
-    } else if ((encryptionFlags & VoldNativeService::ENCRYPTION_FLAG_WIPE) != 0) {
-        how = "wipe";
-    } else {
-        LOG(ERROR) << "Missing encryption flag";
-        return -1;
-    }
-
     for (int tries = 0; tries < 2; ++tries) {
         int rc;
         if (passwordType == VoldNativeService::PASSWORD_TYPE_DEFAULT) {
-            rc = cryptfs_enable_default(how.c_str(), noUi);
+            rc = cryptfs_enable_default(noUi);
         } else {
-            rc = cryptfs_enable(how.c_str(), passwordType, password.c_str(), noUi);
+            rc = cryptfs_enable(passwordType, password.c_str(), noUi);
         }
 
         if (rc == 0) {
@@ -591,9 +581,6 @@
         if (passwordType != PASSWORD_TYPE_DEFAULT) {
             return error("Unexpected password type");
         }
-        if (encryptionFlags != (ENCRYPTION_FLAG_IN_PLACE | ENCRYPTION_FLAG_NO_UI)) {
-            return error("Unexpected flags");
-        }
         return translateBool(e4crypt_enable_crypto());
     }