Update repositories.txt

Username change and removal of non-existent libraries I used to author

Author: mrcodetastic

repositories.txt

@@ -4393,10 +4393,8 @@ https://github.com/mprograms/SimpleRotary
 https://github.com/MR-XieXuan/RX8025_for_Arduino
 https://github.com/MR-XieXuan/URLCode_for_Arduino
 https://github.com/mrdunk/esp8266_mdns
-https://github.com/mrfaptastic/Easy-IoT-Arduino-CC1101-LORA
-https://github.com/mrfaptastic/ESP32-HUB75-MatrixPanel-I2S-DMA
-https://github.com/mrfaptastic/json-streaming-parser2
-https://github.com/mrfaptastic/WiFiConnectLite
+https://github.com/mrcodetastic/ESP32-HUB75-MatrixPanel-DMA/
+https://github.com/mrcodetastic/json-streaming-parser2
 https://github.com/mrjimenez/JTAG
 https://github.com/mrmot021/PLS7shield
 https://github.com/mrmx/Arduino-SI4012