diff --git a/003-dataStructure/019-RBT-basic.png b/003-dataStructure/019-RBT-basic.png deleted file mode 100644 index f23879bba3ee94ecd0efb357ef118bd25c9a4014..0000000000000000000000000000000000000000 Binary files a/003-dataStructure/019-RBT-basic.png and /dev/null differ