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 @@ private:
 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 @@ private:
     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;
     }