Remove ID_C_bounds_check special-case in goto_check_ct

[tautschnig]

This is never used in the Java front-end, and the C front-end can safely
use the pragma-based approach that is more general.

• Each commit message has a non-empty body, explaining why the change was made.
• n/a Methods or procedures I have added are documented, following the guidelines provided in CODING_STANDARD.md.
• n/a The feature or user visible behaviour I have added or modified has been documented in the User Guide in doc/cprover-manual/
• Regression or unit tests are included, or existing tests cover the modified code (in this case I have detailed which ones those are in the commit message).
• n/a My commit message includes data points confirming performance improvements (if claimed).
• My PR is restricted to a single feature or bugfix.
• n/a White-space or formatting changes outside the feature-related changed lines are in commits of their own.

[codecov]

Codecov Report

Merging #6684 (e730633) into develop (1154f13) will decrease coverage by 0.10%.
The diff coverage is 100.00%.

❗ Current head e730633 differs from pull request most recent head 4d4f9e7. Consider uploading reports for the commit 4d4f9e7 to get more accurate results

@@             Coverage Diff             @@
##           develop    #6684      +/-   ##
===========================================
- Coverage    76.92%   76.82%   -0.11%     
===========================================
  Files         1583     1582       -1     
  Lines       183314   182760     -554     
===========================================
- Hits        141018   140407     -611     
- Misses       42296    42353      +57     

Impacted Files	Coverage Δ
jbmc/src/java_bytecode/goto_check_java.cpp	32.40% <ø> (+0.14%)	⬆️
src/analyses/goto_check_c.cpp	90.78% <ø> (-0.83%)	⬇️
src/goto-programs/string_abstraction.cpp	92.45% <ø> (-0.01%)	⬇️
src/ansi-c/ansi_c_entry_point.cpp	89.02% <100.00%> (ø)
src/solvers/smt2_incremental/smt_sorts.def	50.00% <0.00%> (-50.00%)	⬇️
...c/solvers/smt2_incremental/convert_expr_to_smt.cpp	52.67% <0.00%> (-12.69%)	⬇️
src/solvers/flattening/boolbv_constant.cpp	32.85% <0.00%> (-3.81%)	⬇️
jbmc/src/jbmc/jbmc_parse_options.cpp	72.46% <0.00%> (-3.57%)	⬇️
unit/testing-utils/get_goto_model_from_c.cpp	87.17% <0.00%> (-2.30%)	⬇️
src/util/pointer_expr.h	78.77% <0.00%> (-1.75%)	⬇️
... and 35 more

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