Cleanup in CMakeLists.txt

- Remove all variables (like OPENAIR1), they serve no purpose and make
  unnecessarily long lines
- Remove linking to T, it does not seem to be necessary
- Avoid intermediate variables to keep sources, and declare libraries
  directly, making for shorter code

openair1/PHY/CODING/nrLDPC_coding/nrLDPC_coding_segment/CMakeLists.txt

@@ -1,10 +1,8 @@
-set(PHY_NRLDPC_CODING_SEGMENT_SRC
-  ${OPENAIR1_DIR}/PHY/CODING/nrLDPC_coding/nrLDPC_coding_segment/nrLDPC_coding_segment_decoder.c
-  ${OPENAIR1_DIR}/PHY/CODING/nrLDPC_coding/nrLDPC_coding_segment/nrLDPC_coding_segment_encoder.c
+add_library(ldpc MODULE
+  nrLDPC_coding_segment_decoder.c
+  nrLDPC_coding_segment_encoder.c
   ${PHY_NR_CODINGIF}
 )
-
-add_library(ldpc MODULE ${PHY_NRLDPC_CODING_SEGMENT_SRC})
 set_target_properties(ldpc PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
 
 add_dependencies(nr-softmodem ldpc)
@@ -14,10 +12,6 @@ add_dependencies(nr_ulschsim ldpc)
 add_dependencies(nr_dlsim ldpc)
 add_dependencies(nr_dlschsim ldpc)
 
-if (${T_TRACER})
-  add_dependencies(ldpc generate_T)
-endif(${T_TRACER})
-
 add_dependencies(ldpc ldpc_orig ldpc_optim ldpc_optim8seg ldpc_optim8segmulti)
 if (ENABLE_LDPC_CUDA)
   add_dependencies(ldpc ldpc_cuda)