More board name cleanup

Marlin/src/pins/pins_BIGTREE_SKR_MINI_E3.h

@@ -24,9 +24,7 @@
   #error "Oops! Select an STM32F1 board in 'Tools > Board.'"
 #endif
 
-#ifndef BOARD_NAME
-  #define BOARD_NAME "BIGTREE SKR MINI E3"
-#endif
+#define BOARD_NAME "BIGTREE SKR Mini E3"
 
 // Release PB3/PB4 (E0 STP/DIR) from JTAG pins
 #define DISABLE_JTAG

Marlin/src/pins/pins_BIGTREE_SKR_MINI_V1_1.h

@@ -25,9 +25,7 @@
   #error "Oops! Select an STM32F1 board in 'Tools > Board.'"
 #endif
 
-#ifndef BOARD_NAME
-  #define BOARD_NAME "BIGTREE SKR mini V1.1"
-#endif
+#define BOARD_NAME "BIGTREE SKR Mini 1.1"
 
 //#define DISABLE_DEBUG
 #define DISABLE_JTAG

Marlin/src/pins/pins_BIGTREE_SKR_PRO_V1.1.h

@@ -29,7 +29,7 @@
   #error "BIGTREE SKR Pro V1.1 supports up to 3 hotends / E-steppers."
 #endif
 
-#define BOARD_NAME "BIGTREE SKR Pro V1.1"
+#define BOARD_NAME "BIGTREE SKR Pro 1.1"
 
 #define SRAM_EEPROM_EMULATION
 

Marlin/src/pins/pins_BIGTREE_SKR_V1.1.h

@@ -25,9 +25,7 @@
   #error "Oops!  Make sure you have the LPC1768 environment selected in your IDE."
 #endif
 
-#ifndef BOARD_NAME
-  #define BOARD_NAME "BIGTREE SKR V1.1"
-#endif
+#define BOARD_NAME "BIGTREE SKR 1.1"
 
 //
 // Limit Switches

Marlin/src/pins/pins_BIGTREE_SKR_V1.3.h

@@ -25,9 +25,7 @@
   #error "Oops!  Make sure you have the LPC1768 environment selected in your IDE."
 #endif
 
-#ifndef BOARD_NAME
-  #define BOARD_NAME "BIGTREE SKR V1.3"
-#endif
+#define BOARD_NAME "BIGTREE SKR 1.3"
 
 // Ignore temp readings during development.
 //#define BOGUS_TEMPERATURE_GRACE_PERIOD 2000