Give up on GPT-on-MBR this cycle, too dangerous

debian/changelog

@@ -4,7 +4,6 @@ calamares-settings-ubuntu (1:24.04.21) noble; urgency=medium
   * Revamp pkgselect and enable it for everyone. (LP: #2056061)
 
   [ Aaron Rainbolt ]
-  * Use GPT partition tables by default, even on BIOS systems. (LP: #2054601)
   * Don't try to start Unity after the OEM environment exits on Ubuntu Unity,
     this has to be done by logging in via LightDM.
 

kubuntu/modules/partition.conf

@@ -7,7 +7,6 @@ userSwapChoices:
 initialSwapChoice: file
 drawNestedPartitions: true
 defaultFileSystemType: "ext4"
-defaultPartitionTableType: gpt
 availableFileSystemTypes: ["ext4","btrfs","xfs"]
 partitionLayout:
     - name: "kubuntu_boot"

lubuntu/modules/partition.conf

@@ -5,7 +5,6 @@ userSwapChoices:
     - none
     - file
 initialSwapChoice: file
-defaultPartitionTableType: gpt
 drawNestedPartitions: true
 defaultFileSystemType: "ext4"
 availableFileSystemTypes: ["ext4","btrfs","xfs"]

ubuntuunity/modules/partition.conf

@@ -7,7 +7,6 @@ userSwapChoices:
 initialSwapChoice: file
 drawNestedPartitions: true
 defaultFileSystemType: "ext4"
-defaultPartitionTableType: gpt
 availableFileSystemTypes: ["ext4","btrfs","xfs"]
 partitionLayout:
     - name: "ubuntu_unity_boot"