Remove const type qualifiers with no effect

Signed-off-by: Matteo Martincigh <matteo.martincigh@arm.com>
Change-Id: I3ddd98864eef41c0548ab907a48b025b9154a5a8
diff --git a/src/profiling/PacketBuffer.cpp b/src/profiling/PacketBuffer.cpp
index 88133d7..886561a 100644
--- a/src/profiling/PacketBuffer.cpp
+++ b/src/profiling/PacketBuffer.cpp
@@ -20,7 +20,7 @@
     m_Data = std::make_unique<unsigned char[]>(m_MaxSize);
 }
 
-const unsigned char* const PacketBuffer::GetReadableData() const
+const unsigned char* PacketBuffer::GetReadableData() const
 {
     return m_Data.get();
 }