[lldb] Fix redundant condition in compression type check (NFC) (#94841)

The `else if` condition for checking `m_compression_type` is redundant
as it matches with a previous `if` condition, making the expression
always false. Reported by cppcheck as a possible cut-and-paste error.

Caught by cppcheck -

lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp:543:35:
style: Expression is always false because 'else if' condition matches
previous condition at line 535. [multiCondition]

Fix #91222

lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp

@@ -539,9 +539,8 @@ bool GDBRemoteCommunication::DecompressPacket() {
       else if (m_compression_type == CompressionType::ZlibDeflate)
         scratchbuf_size = compression_decode_scratch_buffer_size (COMPRESSION_ZLIB);
       else if (m_compression_type == CompressionType::LZMA)
-        scratchbuf_size = compression_decode_scratch_buffer_size (COMPRESSION_LZMA);
-      else if (m_compression_type == CompressionType::LZFSE)
-        scratchbuf_size = compression_decode_scratch_buffer_size (COMPRESSION_LZFSE);
+        scratchbuf_size =
+            compression_decode_scratch_buffer_size(COMPRESSION_LZMA);
       if (scratchbuf_size > 0) {
         m_decompression_scratch = (void*) malloc (scratchbuf_size);
         m_decompression_scratch_type = m_compression_type;