More serial macro cleanup

Marlin/src/core/debug_out.h

 #undef DEBUG_ECHO_F
 #undef DEBUG_ECHOLN
 #undef DEBUG_ECHOPGM
-#undef DEBUG_ECHOPGM_P
 #undef DEBUG_ECHOLNPGM
-#undef DEBUG_ECHOLNPGM_P
 #undef DEBUG_ECHOPAIR
 #undef DEBUG_ECHOPAIR_P
 #undef DEBUG_ECHOPAIR_F
   #define DEBUG_ECHO_F            SERIAL_ECHO_F
   #define DEBUG_ECHOLN            SERIAL_ECHOLN
   #define DEBUG_ECHOPGM           SERIAL_ECHOPGM
-  #define DEBUG_ECHOPGM_P         SERIAL_ECHOPGM_P
   #define DEBUG_ECHOLNPGM         SERIAL_ECHOLNPGM
-  #define DEBUG_ECHOLNPGM_P       SERIAL_ECHOLNPGM_P
   #define DEBUG_ECHOPAIR          SERIAL_ECHOPAIR
   #define DEBUG_ECHOPAIR_P        SERIAL_ECHOPAIR_P
   #define DEBUG_ECHOPAIR_F        SERIAL_ECHOPAIR_F
   #define DEBUG_ECHO_F(...)         NOOP
   #define DEBUG_ECHOLN(...)         NOOP
   #define DEBUG_ECHOPGM(...)        NOOP
-  #define DEBUG_ECHOPGM_P(...)      NOOP
   #define DEBUG_ECHOLNPGM(...)      NOOP
-  #define DEBUG_ECHOLNPGM_P(...)    NOOP
   #define DEBUG_ECHOPAIR(...)       NOOP
   #define DEBUG_ECHOPAIR_P(...)     NOOP
   #define DEBUG_ECHOPAIR_F(...)     NOOP

Marlin/src/core/serial.h

 #define SERIAL_ECHOLIST(pre,V...)   do{ SERIAL_ECHOPGM(pre); _SLST_N(NUM_ARGS(V),V); }while(0)
 #define SERIAL_ECHOLIST_N(N,V...)   _SLST_N(N,LIST_N(N,V))
 
-#define SERIAL_ECHOPGM_P(P)         (serialprintPGM(P))
-#define SERIAL_ECHOLNPGM_P(P)       (serialprintPGM(P "\n"))
+#define SERIAL_ECHO_P(P)            (serialprintPGM(P))
 
-#define SERIAL_ECHOPGM(S)           (serialprintPGM(PSTR(S)))
-#define SERIAL_ECHOLNPGM(S)         (serialprintPGM(PSTR(S "\n")))
+#define SERIAL_ECHOPGM(S)           (SERIAL_ECHO_P(PSTR(S)))
+#define SERIAL_ECHOLNPGM(S)         (SERIAL_ECHO_P(PSTR(S "\n")))
 
 #define SERIAL_ECHOPAIR_F_P(P,V...) do{ serialprintPGM(P); SERIAL_ECHO_F(V); }while(0)
 #define SERIAL_ECHOLNPAIR_F_P(V...) do{ SERIAL_ECHOPAIR_F_P(V); SERIAL_EOL(); }while(0)

Marlin/src/module/configuration_store.cpp

 
       #if AXIS_IS_TMC(X) || AXIS_IS_TMC(Y) || AXIS_IS_TMC(Z)
         say_M906(forReplay);
-        SERIAL_ECHOLNPAIR_P(
-          #if AXIS_IS_TMC(X)
-            SP_X_STR, stepperX.getMilliamps()
-          #endif
-          #if AXIS_IS_TMC(Y)
-            #if AXIS_IS_TMC(X)
-              ,
-            #endif
-            SP_Y_STR, stepperY.getMilliamps()
-          #endif
-          #if AXIS_IS_TMC(Z)
-            #if AXIS_IS_TMC(X) || AXIS_IS_TMC(Y)
-              ,
-            #endif
-            SP_Z_STR, stepperZ.getMilliamps()
-          #endif
-        );
+        #if AXIS_IS_TMC(X)
+          SERIAL_ECHOPAIR_P(SP_X_STR, stepperX.getMilliamps());
+        #endif
+        #if AXIS_IS_TMC(Y)
+          SERIAL_ECHOPAIR_P(SP_Y_STR, stepperY.getMilliamps());
+        #endif
+        #if AXIS_IS_TMC(Z)
+          SERIAL_ECHOPAIR_P(SP_Z_STR, stepperZ.getMilliamps());
+        #endif
+        SERIAL_EOL();
       #endif
 
       #if AXIS_IS_TMC(X2) || AXIS_IS_TMC(Y2) || AXIS_IS_TMC(Z2)
         say_M906(forReplay);
         SERIAL_ECHOPGM(" I1");
-        SERIAL_ECHOLNPAIR_P(
-          #if AXIS_IS_TMC(X2)
-            SP_X_STR, stepperX2.getMilliamps()
-          #endif
-          #if AXIS_IS_TMC(Y2)
-            #if AXIS_IS_TMC(X2)
-              ,
-            #endif
-            SP_Y_STR, stepperY2.getMilliamps()
-          #endif
-          #if AXIS_IS_TMC(Z2)
-            #if AXIS_IS_TMC(X2) || AXIS_IS_TMC(Y2)
-              ,
-            #endif
-            SP_Z_STR, stepperZ2.getMilliamps()
-          #endif
-        );
+        #if AXIS_IS_TMC(X2)
+          SERIAL_ECHOPAIR_P(SP_X_STR, stepperX2.getMilliamps());
+        #endif
+        #if AXIS_IS_TMC(Y2)
+          SERIAL_ECHOPAIR_P(SP_Y_STR, stepperY2.getMilliamps());
+        #endif
+        #if AXIS_IS_TMC(Z2)
+          SERIAL_ECHOPAIR_P(SP_Z_STR, stepperZ2.getMilliamps());
+        #endif
+        SERIAL_EOL();
       #endif
 
       #if AXIS_IS_TMC(Z3)
 
         if (chop_x || chop_y || chop_z) {
           say_M569(forReplay);
-          if (chop_x) SERIAL_ECHOPGM_P(SP_X_STR);
-          if (chop_y) SERIAL_ECHOPGM_P(SP_Y_STR);
-          if (chop_z) SERIAL_ECHOPGM_P(SP_Z_STR);
+          if (chop_x) SERIAL_ECHO_P(SP_X_STR);
+          if (chop_y) SERIAL_ECHO_P(SP_Y_STR);
+          if (chop_z) SERIAL_ECHO_P(SP_Z_STR);
           SERIAL_EOL();
         }
 
 
         if (chop_x2 || chop_y2 || chop_z2) {
           say_M569(forReplay, PSTR("I1"));
-          if (chop_x2) SERIAL_ECHOPGM_P(SP_X_STR);
-          if (chop_y2) SERIAL_ECHOPGM_P(SP_Y_STR);
-          if (chop_z2) SERIAL_ECHOPGM_P(SP_Z_STR);
+          if (chop_x2) SERIAL_ECHO_P(SP_X_STR);
+          if (chop_y2) SERIAL_ECHO_P(SP_Y_STR);
+          if (chop_z2) SERIAL_ECHO_P(SP_Z_STR);
           SERIAL_EOL();
         }