Kernel: Remove unused partition name API

I was about to convert this to use KString, but then I realized it
wasn't actually used at all, so lets remove it until the day it is
needed.

Kernel/Storage/Partition/DiskPartitionMetadata.cpp

@@ -53,13 +53,12 @@ DiskPartitionMetadata::DiskPartitionMetadata(u64 start_block, u64 end_block, Arr
  VERIFY(m_type.is_valid());
 }
 
-DiskPartitionMetadata::DiskPartitionMetadata(u64 start_block, u64 end_block, Array<u8, 16> partition_type, UUID unique_guid, u64 special_attributes, String name)
+DiskPartitionMetadata::DiskPartitionMetadata(u64 start_block, u64 end_block, Array<u8, 16> partition_type, UUID unique_guid, u64 special_attributes)
  : m_start_block(start_block)
  , m_end_block(end_block)
  , m_type(partition_type)
  , m_unique_guid(unique_guid)
  , m_attributes(special_attributes)
- , m_name(name)
 {
  VERIFY(m_type.is_valid());
  VERIFY(!m_unique_guid.is_zero());
@@ -74,26 +73,24 @@ u64 DiskPartitionMetadata::start_block() const
 {
  return m_start_block;
 }
+
 u64 DiskPartitionMetadata::end_block() const
 {
  return m_end_block;
 }
+
 Optional<u64> DiskPartitionMetadata::special_attributes() const
 {
  if (m_attributes == 0)
  return {};
  return m_attributes;
 }
-Optional<String> DiskPartitionMetadata::name() const
-{
- if (m_name.is_null() || m_name.is_empty())
- return {};
- return m_name;
-}
+
 const DiskPartitionMetadata::PartitionType& DiskPartitionMetadata::type() const
 {
  return m_type;
 }
+
 const UUID& DiskPartitionMetadata::unique_guid() const
 {
  return m_unique_guid;

Kernel/Storage/Partition/DiskPartitionMetadata.h

@@ -33,14 +33,13 @@ class DiskPartitionMetadata {
 public:
  DiskPartitionMetadata(u64 block_offset, u64 block_limit, u8 partition_type);
  DiskPartitionMetadata(u64 start_block, u64 end_block, Array<u8, 16> partition_type);
- DiskPartitionMetadata(u64 block_offset, u64 block_limit, Array<u8, 16> partition_type, UUID unique_guid, u64 special_attributes, String name);
+ DiskPartitionMetadata(u64 block_offset, u64 block_limit, Array<u8, 16> partition_type, UUID unique_guid, u64 special_attributes);
  u64 start_block() const;
  u64 end_block() const;
 
  DiskPartitionMetadata offset(u64 blocks_count) const;
 
  Optional<u64> special_attributes() const;
- Optional<String> name() const;
  const PartitionType& type() const;
  const UUID& unique_guid() const;
 
@@ -50,7 +49,6 @@ class DiskPartitionMetadata {
  PartitionType m_type;
  UUID m_unique_guid {};
  u64 m_attributes { 0 };
- String m_name;
 };
 
 }

Kernel/Storage/Partition/GUIDPartitionTable.cpp

@@ -113,9 +113,8 @@ bool GUIDPartitionTable::initialize()
 
  Array<u8, 16> unique_guid {};
  unique_guid.span().overwrite(0, entry.unique_guid, unique_guid.size());
- String name = entry.partition_name;
  dbgln("Detected GPT partition (entry={}), offset={}, limit={}", entry_index, entry.first_lba, entry.last_lba);
- m_partitions.append({ entry.first_lba, entry.last_lba, partition_type, unique_guid, entry.attributes, "" });
+ m_partitions.append({ entry.first_lba, entry.last_lba, partition_type, unique_guid, entry.attributes });
  raw_byte_index += header().partition_entry_size;
  }