removed config.json files
diff --git a/openlane/user_proj_example/config.json b/openlane/user_proj_example/config.json
deleted file mode 100644
index c3de8af..0000000
--- a/openlane/user_proj_example/config.json
+++ /dev/null
@@ -1,21 +0,0 @@
-{
-    "PDK"                      : "sky130A",
-    "STD_CELL_LIBRARY"         : "sky130_fd_sc_hd",
-    "CARAVEL_ROOT"             : "../../caravel",
-    "CLOCK_NET"                : "counter.clk",
-    "CLOCK_PERIOD"             : "10",
-    "CLOCK_PORT"               : "wb_clk_i",
-    "DESIGN_IS_CORE"           : "0",
-    "DESIGN_NAME"              : "user_proj_example",
-    "DIE_AREA"                 : "0 0 900 600",
-    "DIODE_INSERTION_STRATEGY" : "4",
-    "FP_PIN_ORDER_CFG"         : "pin_order.cfg",
-    "FP_SIZING"                : "absolute",
-    "GLB_RT_MAXLAYER"          : "5",
-    "GND_NETS"                 : "vssd1",
-    "PL_BASIC_PLACEMENT"       : "1",
-    "PL_TARGET_DENSITY"        : "0.05",
-    "RUN_CVC"                  : "1",
-    "VDD_NETS"                 : "vccd1",
-    "VERILOG_FILES"            : ["../../caravel/verilog/rtl/defines.v", "../../verilog/rtl/user_proj_example.v"]
-}
diff --git a/openlane/user_project_wrapper/config.json b/openlane/user_project_wrapper/config.json
deleted file mode 100644
index d83d5bb..0000000
--- a/openlane/user_project_wrapper/config.json
+++ /dev/null
@@ -1,58 +0,0 @@
-{
-    "PDK"                             : "sky130A",
-    "STD_CELL_LIBRARY"                : "sky130_fd_sc_hd",
-    "CARAVEL_ROOT"                    : "../../caravel",
-    "CLOCK_NET"                       : "mprj.clk",
-    "CLOCK_PERIOD"                    : "10",
-    "CLOCK_PORT"                      : "user_clock2",
-    "CLOCK_TREE_SYNTH"                : "0",
-    "DESIGN_NAME"                     : "user_project_wrapper",
-    "DIE_AREA"                        : "0 0 2920 3520",
-    "DIODE_INSERTION_STRATEGY"        : "0",
-    "EXTRA_GDS_FILES"                 : "../../gds/user_proj_example.gds",
-    "EXTRA_LEFS"                      : "../../lef/user_proj_example.lef",
-    "FILL_INSERTION"                  : "0",
-    "FP_IO_HEXTEND"                   : "4.8",
-    "FP_IO_HLENGTH"                   : "2.4",
-    "FP_IO_HTHICKNESS_MULT"           : "4",
-    "FP_IO_VEXTEND"                   : "4.8",
-    "FP_IO_VLENGTH"                   : "2.4",
-    "FP_IO_VTHICKNESS_MULT"           : "4",
-    "FP_PDN_CHECK_NODES"              : "0",
-    "FP_PDN_CORE_RING"                : "1",
-    "FP_PDN_CORE_RING_HOFFSET"        : "14",
-    "FP_PDN_CORE_RING_HSPACING"       : "1.7",
-    "FP_PDN_CORE_RING_HWIDTH"         : "3.1",
-    "FP_PDN_CORE_RING_VOFFSET"        : "14",
-    "FP_PDN_CORE_RING_VSPACING"       : "1.7",
-    "FP_PDN_CORE_RING_VWIDTH"         : "3.1",
-    "FP_PDN_ENABLE_RAILS"             : "0",
-    "FP_PDN_HOFFSET"                  : "5",
-    "FP_PDN_HPITCH"                   : "180",
-    "FP_PDN_HSPACING"                 : "15.5",
-    "FP_PDN_HWIDTH"                   : "3.1",
-    "FP_PDN_MACRO_HOOKS"              : "mprj vccd1 vssd1",
-    "FP_PDN_VOFFSET"                  : "5",
-    "FP_PDN_VPITCH"                   : "180",
-    "FP_PDN_VSPACING"                 : "15.5",
-    "FP_PDN_VWIDTH"                   : "3.1",
-    "FP_PIN_ORDER_CFG"                : "../../caravel/openlane/user_project_wrapper_empty/pin_order.cfg",
-    "FP_SIZING"                       : "absolute",
-    "GLB_RT_MAXLAYER"                 : "5",
-    "GND_NETS"                        : "vssd1 vssd2 vssa1 vssa2",
-    "MACRO_PLACEMENT_CFG"             : "macro.cfg",
-    "MAGIC_ZEROIZE_ORIGIN"            : "0",
-    "PL_RANDOM_GLB_PLACEMENT"         : "1",
-    "PL_RESIZER_BUFFER_INPUT_PORTS"   : "0",
-    "PL_RESIZER_BUFFER_OUTPUT_PORTS"  : "0",
-    "PL_RESIZER_DESIGN_OPTIMIZATIONS" : "0",
-    "PL_RESIZER_TIMING_OPTIMIZATIONS" : "0",
-    "RUN_CVC"                         : "0",
-    "SYNTH_TOP_LEVEL"                 : "1",
-    "SYNTH_USE_PG_PINS_DEFINES"       : "USE_POWER_PINS",
-    "TAP_DECAP_INSERTION"             : "0",
-    "VDD_NETS"                        : "vccd1 vccd2 vdda1 vdda2",
-    "VERILOG_FILES"                   : ["../../caravel/verilog/rtl/defines.v","../../verilog/rtl/user_project_wrapper.v"],  
-    "VERILOG_FILES_BLACKBOX"          : ["../../caravel/verilog/rtl/defines.v","../../verilog/rtl/user_proj_example.v"]  
-}
-