Remove general contracts flags

Removes --enforce-all-contracts and --replace-all-calls-with-contracts flags.
The user must specify which functions to enforce or replace using contracts.

Signed-off-by: Felipe R. Monteiro <felisous@amazon.com>

Author: feliperodri

regression/contracts/assigns_enforce_01/test.desc

@@ -1,6 +1,6 @@
 CORE
 main.c
---enforce-all-contracts
+--enforce-contract foo
 ^EXIT=0$
 ^SIGNAL=0$
 ^VERIFICATION SUCCESSFUL$

regression/contracts/assigns_enforce_02/test.desc

@@ -1,6 +1,6 @@
 CORE
 main.c
---enforce-all-contracts
+--enforce-contract foo
 ^EXIT=10$
 ^SIGNAL=0$
 ^VERIFICATION FAILED$

regression/contracts/assigns_enforce_03/test.desc

@@ -1,6 +1,6 @@
 CORE
 main.c
---enforce-all-contracts
+--enforce-contract f1 --enforce-contract f2 --enforce-contract f3
 ^EXIT=0$
 ^SIGNAL=0$
 ^VERIFICATION SUCCESSFUL$

regression/contracts/assigns_enforce_04/test.desc

@@ -1,6 +1,6 @@
 CORE
 main.c
---enforce-all-contracts
+--enforce-contract f1 --enforce-contract f2 --enforce-contract f3
 ^EXIT=10$
 ^SIGNAL=0$
 ^VERIFICATION FAILED$

regression/contracts/assigns_enforce_05/test.desc

@@ -1,6 +1,6 @@
 CORE
 main.c
---enforce-all-contracts
+--enforce-contract f1 --enforce-contract f2 --enforce-contract f3
 ^EXIT=0$
 ^SIGNAL=0$
 ^\[f1.1\] line \d+ .*: SUCCESS$

regression/contracts/assigns_enforce_06/test.desc

@@ -1,6 +1,6 @@
 CORE
 main.c
---enforce-all-contracts
+--enforce-contract f1 --enforce-contract f2 --enforce-contract f3
 ^EXIT=0$
 ^SIGNAL=0$
 ^VERIFICATION SUCCESSFUL$

regression/contracts/assigns_enforce_07/test.desc

@@ -1,6 +1,6 @@
 CORE
 main.c
---enforce-all-contracts
+--enforce-contract f1 --enforce-contract f2 --enforce-contract f3
 ^EXIT=10$
 ^SIGNAL=0$
 ^VERIFICATION FAILED$

regression/contracts/assigns_enforce_08/test.desc

@@ -1,6 +1,6 @@
 CORE
 main.c
---enforce-all-contracts
+--enforce-contract f1 --enforce-contract f2
 ^EXIT=0$
 ^SIGNAL=0$
 ^VERIFICATION SUCCESSFUL$

regression/contracts/assigns_enforce_09/test.desc

@@ -1,6 +1,6 @@
 CORE
 main.c
---enforce-all-contracts
+--enforce-contract f1 --enforce-contract f2
 ^EXIT=10$
 ^SIGNAL=0$
 ^VERIFICATION FAILED$

regression/contracts/assigns_enforce_10/test.desc

@@ -1,6 +1,6 @@
 CORE
 main.c
---enforce-all-contracts
+--enforce-contract f1 --enforce-contract f2
 ^EXIT=10$
 ^SIGNAL=0$
 ^VERIFICATION FAILED$