Remove redundant if/else statements

[JamieMagee]

Removes redundant if/else statements. For example:

if (foo()) {
   return true;
} else {
   return false;
}

can be simplified to:

return foo();

[codecov-io]

Codecov Report

Merging #470 into dev will decrease coverage by 0.01%.
The diff coverage is 9.09%.

@@             Coverage Diff              @@
##                dev     #470      +/-   ##
============================================
- Coverage     46.26%   46.25%   -0.02%     
+ Complexity     2201     2197       -4     
============================================
  Files           108      108              
  Lines         25227    25194      -33     
  Branches       4172     4158      -14     
============================================
- Hits          11672    11654      -18     
+ Misses        11538    11525      -13     
+ Partials       2017     2015       -2

Flag	Coverage Δ	Complexity Δ
#JDBC41	46.03% <9.09%> (-0.04%)	2186 <15> (-6)
#JDBC42	46.12% <9.09%> (+0.01%)	2193 <15> (-4)	⬇️

Impacted Files	Coverage Δ	Complexity Δ
...va/com/microsoft/sqlserver/jdbc/StreamColumns.java	90.41% <0%> (+1.22%)	22 <8> (ø)	⬇️
...java/com/microsoft/sqlserver/jdbc/StreamError.java	90% <0%> (+4.28%)	8 <1> (ø)	⬇️
...a/com/microsoft/sqlserver/jdbc/StreamLoginAck.java	76.92% <0%> (+5.49%)	3 <1> (ø)	⬇️
...va/com/microsoft/sqlserver/jdbc/StreamColInfo.java	81.81% <0%> (+3.55%)	6 <1> (ø)	⬇️
...soft/sqlserver/jdbc/SQLServerDatabaseMetaData.java	30.25% <0%> (+0.55%)	49 <0> (ø)	⬇️
.../java/com/microsoft/sqlserver/jdbc/StreamInfo.java	71.42% <0%> (+8.92%)	3 <1> (ø)	⬇️
.../java/com/microsoft/sqlserver/jdbc/StreamSSPI.java	0% <0%> (ø)	0 <0> (ø)	⬇️
.../com/microsoft/sqlserver/jdbc/StreamRetStatus.java	71.42% <0%> (+8.92%)	4 <1> (ø)	⬇️
...a/com/microsoft/sqlserver/jdbc/StreamRetValue.java	81.81% <0%> (+6.81%)	5 <1> (ø)	⬇️
...erverColumnEncryptionCertificateStoreProvider.java	0% <0%> (ø)	0 <0> (ø)	⬇️
... and 10 more

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