Remove obsolete attributes in examples

examples/demo02.yml

@@ -24,7 +24,6 @@ connectors:
     pinlabels: [GND, +12V, MISO, MOSI, SCK]
   F:
     style: simple
-    show_name: false
     type: Crimp ferrule
     subtype: 0.25 mm²
     color: YE

test/test1.yml

@@ -9,7 +9,6 @@ connectors:
     pinlabels: [A, B, C, D]
   F:
     style: simple
-    show_name: false
     type: Ferrule
     color: GY
 

test/test3.yml

@@ -12,7 +12,6 @@ connectors:
     subtype: female
   F:
     style: simple
-    show_name: false
     type: Ferrule
     color: GY
 

test/test9.yml

@@ -13,7 +13,6 @@ connectors:
     color: GN
     pinlabels: [W, X, Y, Z]
   S:
-    # autogenerate: true should no longer be required with the new syntax
     style: simple
     type: Splice
     color: CU

tutorial/tutorial05.yml

@@ -5,7 +5,6 @@ connectors:
     subtype: female
   F1:
     style: simple
-    show_name: false
     type: Crimp ferrule
     subtype: 0.5 mm²
     color: OG # optional color

tutorial/tutorial06.yml

@@ -5,13 +5,11 @@ connectors:
     subtype: female
   F_10: # this is a unique ferrule
     style: simple
-    show_name: false # non-autogenerated connectors show their name by default; override
     type: Crimp ferrule
     subtype: 1.0 mm²
     color: YE # optional color
   F_05: # this is a ferrule that will be auto-generated on demand
     style: simple
-    show_name: false
     type: Crimp ferrule
     subtype: 0.5 mm²
     color: OG