[#3388] Remove GPL-incompatible code in pjsip, MP3 G77221

sflphone-common/libs/pjproject/aconfigure

sflphone-common/libs/pjproject/aconfigure.ac

...common/libs/pjproject/third_party/g7221/common/basic_op.c

...common/libs/pjproject/third_party/g7221/common/basic_op.h

...mmon/libs/pjproject/third_party/g7221/common/basic_op_i.h

...e-common/libs/pjproject/third_party/g7221/common/common.c

...e-common/libs/pjproject/third_party/g7221/common/config.h

...ne-common/libs/pjproject/third_party/g7221/common/count.h

...one-common/libs/pjproject/third_party/g7221/common/defs.h

...common/libs/pjproject/third_party/g7221/common/huff_def.h

...common/libs/pjproject/third_party/g7221/common/huff_tab.c

...common/libs/pjproject/third_party/g7221/common/huff_tab.h

...e-common/libs/pjproject/third_party/g7221/common/tables.c

...e-common/libs/pjproject/third_party/g7221/common/tables.h

...-common/libs/pjproject/third_party/g7221/common/typedef.h

...common/libs/pjproject/third_party/g7221/decode/coef2sam.c

...e-common/libs/pjproject/third_party/g7221/decode/dct4_s.c

...e-common/libs/pjproject/third_party/g7221/decode/dct4_s.h

...-common/libs/pjproject/third_party/g7221/decode/decoder.c

...e-common/libs/pjproject/third_party/g7221/encode/dct4_a.c