Remove PR define, replace with TRACE_DEBUG

The define PR was introduced to switch quickly between TRACE levels
for specific debug print messages.

Now, it all became debug output, since it is not needed in normal
operation.
diff --git a/firmware/src_board/cciddriver.c b/firmware/src_board/cciddriver.c
index 308c582..02ab63e 100644
--- a/firmware/src_board/cciddriver.c
+++ b/firmware/src_board/cciddriver.c
@@ -59,8 +59,6 @@
 #define DFU_NUM_STRINGS 0
 #define DFU_STRING_DESCRIPTORS
 
-#define PR  TRACE_INFO
-
 //------------------------------------------------------------------------------
 //         Local definition
 //------------------------------------------------------------------------------
@@ -428,11 +426,11 @@
     uint16_t msglen = 0;
     uint32_t ret;
 
-    PR("PCtoRDRXfrBlock\n");
+    TRACE_DEBUG("PCtoRDRXfrBlock\n");
 
     // Check the block length
     if ( ccidDriver.sCcidCommand.wLength > (configurationDescriptorsFS->ccid.dwMaxCCIDMessageLength-10) ) {
-        PR("Err block/msg len");
+        TRACE_DEBUG("Err block/msg len");
         ccidDriver.sCcidMessage.bStatus = 1;
         ccidDriver.sCcidMessage.bError  = 0;
     }
@@ -449,7 +447,7 @@
 
             case CCID_FEATURES_EXC_TPDU:
                 if (ccidDriver.ProtocolDataStructure[1] == PROTOCOL_TO) {
-                    PR("APDU cmd: %x %x %x ..", ccidDriver.sCcidCommand.APDU[0], ccidDriver.sCcidCommand.APDU[1],ccidDriver.sCcidCommand.APDU[2] );
+                    TRACE_DEBUG("APDU cmd: %x %x %x ..", ccidDriver.sCcidCommand.APDU[0], ccidDriver.sCcidCommand.APDU[1],ccidDriver.sCcidCommand.APDU[2] );
 
                     // Send commande APDU
                     ret = ISO7816_XfrBlockTPDU_T0( ccidDriver.sCcidCommand.APDU ,
@@ -463,16 +461,16 @@
                 }
                 else {
                     if (ccidDriver.ProtocolDataStructure[1] == PROTOCOL_T1) {
-                        PR("Not supported T=1\n\r");
+                        TRACE_DEBUG("Not supported T=1\n\r");
                     }
                     else {
-                        PR("Not supported 0x%x\n\r", ccidDriver.ProtocolDataStructure[1]);
+                        TRACE_DEBUG("Not supported 0x%x\n\r", ccidDriver.ProtocolDataStructure[1]);
                     }
                 }
                 break;
 
             case CCID_FEATURES_EXC_APDU:
-                PR("Not supported CCID_FEATURES_EXC_APDU\n\r");
+                TRACE_DEBUG("Not supported CCID_FEATURES_EXC_APDU\n\r");
                 break;
 
             default:
diff --git a/firmware/src_simtrace/phone.c b/firmware/src_simtrace/phone.c
index 6138dab..0ea3a33 100644
--- a/firmware/src_simtrace/phone.c
+++ b/firmware/src_simtrace/phone.c
@@ -108,8 +108,6 @@
 
 static struct Usart_info usart_info = {.base = USART_PHONE, .id = ID_USART_PHONE, .state = USART_RCV};
 
-#define PR  TRACE_INFO
-
 /* ===================================================*/
 /*                      Taken from iso7816_4.c        */
 /* ===================================================*/
@@ -131,8 +129,8 @@
         TRACE_ERROR("USB err status: %d (%s)\n", __FUNCTION__, status);
         return;
     }
-    PR("sendResp, stat: %X, trnsf: %x, rem: %x\n\r", status, transferred, remaining);
-    PR("Resp: %x %x %x .. %x\n", host_to_sim_buf[0], host_to_sim_buf[1], host_to_sim_buf[2], host_to_sim_buf[transferred-1]);
+    TRACE_DEBUG("sendResp, stat: %X, trnsf: %x, rem: %x\n\r", status, transferred, remaining);
+    TRACE_DEBUG("Resp: %x %x %x .. %x\n", host_to_sim_buf[0], host_to_sim_buf[1], host_to_sim_buf[2], host_to_sim_buf[transferred-1]);
 
     USART_SetReceiverEnabled(USART_PHONE, 0);
     USART_SetTransmitterEnabled(USART_PHONE, 1);
diff --git a/firmware/src_simtrace/simtrace_iso7816.c b/firmware/src_simtrace/simtrace_iso7816.c
index 452bcc8..a6fabb5 100644
--- a/firmware/src_simtrace/simtrace_iso7816.c
+++ b/firmware/src_simtrace/simtrace_iso7816.c
@@ -38,10 +38,6 @@
 
 volatile uint32_t char_stat;
 
-// FIXME: Remove:
-#define PR TRACE_INFO
-//#define PR printf 
-
 volatile ringbuf sim_rcv_buf = { {0}, 0, 0 };
 
 /*-----------------------------------------------------------------------------
@@ -105,7 +101,7 @@
             /* Fill char into buffer */
             rbuf_write(&sim_rcv_buf, c);
         } else {
-            PR("e %x st: %x\n", c, stat);
+            TRACE_DEBUG("e %x st: %x\n", c, stat);
         } /* else: error occured */
 
         char_stat = stat;