Remove initial tab character of assembly string.

Author: Rot127

arch/ARM/ARMGenAsmWriter.inc

@@ -9603,7 +9603,7 @@ MnemonicBitsInfo getMnemonic(MCInst *MI, SStream *O) {
 /// printInstruction - This method is automatically generated by tablegen
 /// from the instruction set description.
 void printInstruction(MCInst *MI, uint64_t Address, SStream *O) {
-  SStream_concat0(O, "\t");
+  SStream_concat0(O, "");
   MnemonicBitsInfo MnemonicInfo = getMnemonic(MI, O);
 
   SStream_concat0(O, MnemonicInfo.first);