diff --git a/platformio/commands/debug/initcfgs.py b/platformio/commands/debug/initcfgs.py
index bb319270..55e7c34f 100644
--- a/platformio/commands/debug/initcfgs.py
+++ b/platformio/commands/debug/initcfgs.py
@@ -141,17 +141,6 @@ $INIT_BREAK
 monitor start
 """
 
-GDB_SIMAVR_INIT_CONFIG = """
-define pio_reset_halt_target
-end
-
-define pio_reset_run_target
-end
-
-target extended-remote $DEBUG_PORT
-$INIT_BREAK
-$LOAD_CMDS
-"""
 
 TOOL_TO_CONFIG = {
     "jlink": GDB_JLINK_INIT_CONFIG,
@@ -159,7 +148,6 @@ TOOL_TO_CONFIG = {
     "qemu": GDB_QEMU_INIT_CONFIG,
     "blackmagic": GDB_BLACKMAGIC_INIT_CONFIG,
     "renode": GDB_RENODE_INIT_CONFIG,
-    "simavr": GDB_SIMAVR_INIT_CONFIG,
 }