Remove .pnm from gitignore

Since distribution maps now use PNG

.gitignore

@@ -26,7 +26,6 @@
 *.dll
 *.so
 *.so.*
-*.dylib
 
 # Executables
 *.exe
@@ -34,7 +33,6 @@
 *.app
 *.i*86
 *.x86_64
-*.hex
 
 # Debug files
 *.dSYM/
@@ -44,9 +42,8 @@
 
 # Program specifics
 *.png
-*.wav
 !textlogo.png
-*.pnm
+*.wav
 aptdec
 
 # VSCode