Delete unused common.php functions (#2716)

A bit of spring cleaning to remove functions which have been rendered
obsolete since my last pass through `common.php`.

Author: williamjallen

app/cdash/include/common.php

@@ -492,30 +492,6 @@ function date2day(string $date): string
     return is_numeric(substr($date, 4, 1)) ? substr($date, 6, 2) : substr($date, 8, 2);
 }
 
-/**
- * Get hour from formatted time
- */
-function time2hour(string $time): string
-{
-    return substr($time, 0, 2);
-}
-
-/**
- * Get minute from formatted time
- */
-function time2minute(string $time): string
-{
-    return is_numeric(substr($time, 2, 1)) ? substr($time, 2, 2) : substr($time, 3, 2);
-}
-
-/**
- * Get second from formatted time
- */
-function time2second(string $time): string
-{
-    return is_numeric(substr($time, 2, 1)) ? substr($time, 4, 2) : substr($time, 6, 2);
-}
-
 /** Get dates
  * today: the *starting* timestamp of the current dashboard
  * previousdate: the date in Y-m-d format of the previous dashboard
@@ -579,18 +555,6 @@ function make_cdash_url(string $url): string
     return $url;
 }
 
-/**
- * Quote SQL interval specifier
- */
-function qiv($iv)
-{
-    if (config('database.default') == 'pgsql') {
-        return "'$iv'";
-    } else {
-        return $iv;
-    }
-}
-
 /**
  * Quote SQL number
  */
@@ -605,30 +569,6 @@ function qnum($num)
     }
 }
 
-/**
- * Return the byte value with proper extension
- */
-function getByteValueWithExtension($value, $base = 1024): string
-{
-    $valueext = '';
-    if ($value > $base) {
-        $value /= $base;
-        $value = $value;
-        $valueext = 'K';
-    }
-    if ($value > $base) {
-        $value /= $base;
-        $value = $value;
-        $valueext = 'M';
-    }
-    if ($value > $base) {
-        $value /= $base;
-        $value = $value;
-        $valueext = 'G';
-    }
-    return round($value, 2) . $valueext;
-}
-
 /**
  * Check if user has specified a preference for color scheme.
  */

phpstan-baseline.neon

@@ -13266,21 +13266,6 @@ parameters:
 			count: 1
 			path: app/cdash/include/common.php
 
-		-
-			message: "#^Function getByteValueWithExtension\\(\\) has parameter \\$base with no type specified\\.$#"
-			count: 1
-			path: app/cdash/include/common.php
-
-		-
-			message: "#^Function getByteValueWithExtension\\(\\) has parameter \\$value with no type specified\\.$#"
-			count: 1
-			path: app/cdash/include/common.php
-
-		-
-			message: "#^Function getByteValueWithExtension\\(\\) throws checked exception DivisionByZeroError but it's missing from the PHPDoc @throws tag\\.$#"
-			count: 3
-			path: app/cdash/include/common.php
-
 		-
 			message: "#^Function get_dashboard_JSON\\(\\) has no return type specified\\.$#"
 			count: 1
@@ -13366,16 +13351,6 @@ parameters:
 			count: 1
 			path: app/cdash/include/common.php
 
-		-
-			message: "#^Function qiv\\(\\) has no return type specified\\.$#"
-			count: 1
-			path: app/cdash/include/common.php
-
-		-
-			message: "#^Function qiv\\(\\) has parameter \\$iv with no type specified\\.$#"
-			count: 1
-			path: app/cdash/include/common.php
-
 		-
 			message: "#^Function qnum\\(\\) has no return type specified\\.$#"
 			count: 1
@@ -13448,7 +13423,7 @@ parameters:
 
 		-
 			message: "#^Loose comparison via \"\\=\\=\" is not allowed\\.$#"
-			count: 8
+			count: 7
 			path: app/cdash/include/common.php
 
 		-